Comme annoncé plus tôt sur le forum par Lionel, Hewlett Packard met aujourd'hui à jour son firmware HP-Prime, ainsi que les logiciels associés de simulation et de connectivité.Les mises à jour, apportant principalement le support des nouveaux modules sans-fil, sont datées du 31 mars 2014 et remplacent donc les précédentes datées du 25 novembre 2013:
- une nouvelle build 6030 du firmware, remplaçant l'ancienne build 5447, et que les informations internes numérotent en version SDK 0.32 ou encore 1.03
- une nouvelle build 6031 du logiciel de simulation HP-Prime pour ordinateur, remplaçant l'ancienne build 5447
- une nouvelle build 6026 du logiciel de communication HP-Connectivity Kit, remplaçant l'ancienne build 5442
Commençons par découvrir le dernier logiciel de communication HP-Connectivity Kit.D'un côté, on peut enfin transférer des fichiers de façon intuitive par simple glisser-déposer à la souris !
(ce n'est pas trop tôt)D'un autre côté, le logiciel se voit aussi doter de nouvelles évolutions majeures destinées à faciliter grandement l'interaction avec une classe équipée en calculatrices HP-Prime:
- aux éditeurs de programmes et de textes s'ajoutent:
- un éditeur de sondage permettant de poser une question à une classe et d'en récolter les réponses (choix multiples, vrai/faux, réponses courtes sous la forme de nombres, points, expressions, textes...)
- un éditeur de mode examen, permettant de configurer les restrictions que l'on souhaite voir appliquées aux calculatrices pendant une épreuve
- un éditeur de sondage permettant de poser une question à une classe et d'en récolter les réponses (choix multiples, vrai/faux, réponses courtes sous la forme de nombres, points, expressions, textes...)
- apparaît également un 'moniteur', permettant de visualiser l'ensemble des écrans calculatrice de la classe et de vérifier ainsi que tout-le-monde est bien en train de travailler tout en contrôlant la progression de chacun
- et également un cadre de chat permettant d'envoyer un message à l'ensemble des calculatrices de la classe, l'application 'Messages' passant alors en avant plan permettant même à chaque élève de répondre individuellement à son enseignant
Mais nous noterons que cela ne l'empêche pas d'innover (cadre de chat) et qu'il est beaucoup plus léger, démarrant et se fermant de façon quasi instantanée en comparaison.
Les transferts étaient jusqu'alors relativement lents. Les utilisateurs du convertisseur de PDF en ligne mViewer GX Creator en savaient quelque chose: pas moins de 45 secondes pour transférer un petit programme de seulement 2Mo.
Nos tests semblent montrer que le protocole a été revu, et que les transferts sont désormais deux fois plus rapides - à peine plus d'une 10aine de secondes pour un petit fichier de 1Mo !
Toutefois il n'y a toujours aucune barre de progression, ce qui nous fait travailler à l'aveugle et commettre nombre d'erreurs de manipulations dès que les transferts ne sont pas instantanés.
Passons maintenant au logiciel et à la calculatrice HP-Prime.
Le changelog officiel serait à priori encourageant:
- 19 nouvelles fonctionnalités
- 40 corrections de bugs non liés au moteur de calcul formel
- 75 corrections de bugs du moteur de calcul formel
Show/Hide spoilerAfficher/Masquer le spoiler
HP Prime – Release Notes
-------------------------
Date Released: 2014/03/31
Internal Versions
-----------------
Firmware Version: 2014 03 31 (6030)
Virtual Calculator Version: 2014 03 31 (6031)
Connectivity Kit: 2014 03 31 (6026)
Description
-----------
This release of the Prime Calculator firmware and associated PC software delivers significant new features and fixes outstanding issues. This document is not a complete list of all changes, but highlights specific items. All users of the HP Prime calculator are encouraged to upgrade for the best possible experience.
Backward Compatibility
----------------------
There is limited backward compatibility between this and earlier releases.
Older Prime hardware (Revision A) does support this release, however the wireless, unit-to-unit, and data streamer functionality is not supported on earlier models. In the Help->About HP Prime screen the hardware revision will be displayed along with software version information. Mixing and matching software revisions is not encouraged and may cause unexpected results. Users are strongly encouraged to first backup their calculators with the older firmware and Connectivity Kit - then upgrade all their calculator software (firmware, Connectivity Kit, and Virtual Calculator). Upgrade the Connectivity kit first, before upgrading your calculator firmware. This order will produce the best experience.
The geometry application and inference have received significant updates and earlier data files will not be compatible. Old data files from earlier revisions will not load and and a new empty data file will overwrite the old one.
Due to some specific issues resolved, certain user programs may not run on the new system without changes first. Specifically, any commands with the Σ character in the name may need to be corrected to use the correct sigma character. Function variables will now also error if the function parameter is using a reserved system function name (example: SIN or COLOR). Additionally, the TRIANGLE commands were modified to allow TRIANGLE, LINE and FILLPOLY to share similar data and syntax to enable easier creation of complex 3D drawings
New Functionality (Connectivity Kit)
------------------------------------
1. Application has had major improvements to the user interface. Please refer to the included connectivity kit User's Guide for instructions and details.
2. Support for the HP Wireless Classroom network has been introduced. Please see http://www.hp.com/calculators/ for details on the Wireless Classroom kit.
3. Greatly enhanced communication speed over USB link to calculator.
New Functionality (Calculator Software)
---------------------------------------
1. Improved touch support throughout system. This includes pinch to zoom support in graphing applications, and kinetic scrolling.
2. Pressing HELP in an open command line will attempt to find the name of a command based on the prior input up to the cursor position to display system help for that command.
3. Includes Edition 2 of the on calculator help files (English only in this release).
4. Greatly enhanced robustness and capability of the Statistics 2Var logistic fit.
5. Wireless support for capable units turned on. Wireless icon will appear in the right top corner menu for units that can support the HP Prime Wireless Kit.
6. Calculator unit-to-unit communications has now been enabled on units that can support it.
7. Numerical values now can be displayed with digit groupings. Examples include: 1,234.567 1 234.567 and 1’234,567
8. Two new numerical display formats have been introduced. These are “floating” which only displays up to a specified number of digits, and “rounded” which is similar to the “fixed” format except trailing zeros are suppressed.
9. Decimal fractions now appear with a zero, as in 0.25.
10. Vectors are now displayed as a single line object until they become a matrix. This aids in distinguishing vectors and matrices.
11. User selectable first day of week setting for use through the system.
12. First boot unlock and settings wizard. User will be asked to confirm language selection and some initial settings.
13. Inference application now can do Chi-Square calculations and Linear Regression T calculations.
14. Geometry application has been completely redone and is much faster, consistent, and capable than before.
15. Enhanced color pickers allow a greater range of color selection.
16. Pressing ENTER will now open chooser in a dialog or toggle checkbox.
17. Enhanced unit object display to ensure a more standard form with complex units.
18. TRIANGLE, FILLPOLY and LINE commands can now draw multiple objects in a consistent way with each other. Useful for very complicated 3D drawing in user programs.
19. INPUT command can now create multi-page dialogs and contain choose boxes, check boxes and grouped check boxes. It can also allow specific item types and gives control of parsing behavior for input. It also supports size and position control.
New Functionality (Virtual Calculator)
--------------------------------------
1. A horizontal skin has been included for use with monitors that are restricted in the vertical pixel range.
Resolved issues and changes excluding CAS
-----------------------------------------
1. Resolved issue with statistics 2 variable trig fit causing poor curve fit.
2. Resolved issue with removing last row or column from a CAS matrix in the matrix editor.
3. Resolved issue with .^ and ./ function calculations.
4. Resolved issue with EDITLIST/EDITMAT commands not working in RPN mode.
5. Resolved issue with BLIT command when specified destination was a zero sized region.
6. Resolved several issues with fraction key in home to make behavior more consistent.
7. Resolved issue in 2D integral template where EEX key would always add a 1 before the E in the evaluation limit locations.
8. Resolved several issues where integer only settings fields would display using the current display setting.
9. Resolved issue where auto power off did not function in graphing applications.
10. Resolved issue with commands EDITLIST and EDITMAT using user defined variables.
11. Resolved issue with key buffer not being cleared when the user aborts a running program.
12. Resolved issue with auto off timer in plot gallery not being reset on user touch.
13. Resolved issue with auto-off timer in plot gallery not being reset on user input.
14. Resolved issue with copy and paste in spreadsheet.
15. Resolved issue with sigma character in command names not being consistent through entire system.
16. Resolved issue with RETURN call inside repeating loop in a user program.
17. Resolved issue with object printing in debugging interface causing unpredictable behavior.
18. Resolved problem with integration calling ABS(F1(X))
19. Resolved issue with G0-G9 in user programs while spreadsheet was active application.
20. Resolved issue with 10 second periodic wakeup during sleep reducing long term shelf life.
21. Resolved issue with KWh in menu needing to be named kWh to function properly.
22. Resolved issue where storing a number to a vector padded with too many zeros.
23. Resolved issue with clicking EDIT menu after deleting last CAS object from memory manager catalog.
24. Resolved issue with negative and STO conversion shortcut.
25. Resolved issue where tapping an item in Advanced Grapher Symbolic view behaved differently then tapping edit menu key.
26. Resolved issue where calculating integration with boundary at 0 appeared to fail.
27. Resolved issue with case sensitivity in note and program catalog.
28. Resolved issue where changing font size could cause strange artifacts in 2d equation display in Symbolic view.
29. Resolved problem where copying .+ or .- operators would not insert space before commands.
30. Resolved issue with ΣLIST and a vector argument.
31. Resolved some issues with F1 and CAS interaction.
32. Resolved issue with the UNITS -> TOOLS menu commands not evaluating immediately in RPN mode.
33. Resolved issue with eigenvectors of diagonal matrices in home.
34. Resolved issue where DMS toggle on home screen did not work with certain numbers.
35. Resolved issue with RPN stack not being cleared by a clear in memory manager.
36. Resolved issue where changing HEX or other similar settings did not update stack display immediately.
37. Resolved issue where clearing memory from catalog did not clear Ans variables.
38. Resolved issue where pressing BKSP on a CAS variable from chooser did not delete it.
39. Resolved issue where CAS screen would have left/right alignments disrupted after a power cycle.
40. Resolved issue with logb and very tiny values.
Resolved issues and changes in CAS
----------------------------------
1. Resolved issue with for desolve([y'=sqrt(y),y(1)=1],x,y)
2. Resolved issue with units in approx mode and auto simplification on units
3. Added check for real matrix in SVD
4. Resolved issue with tlin(cos(a)*cos(b)) and with plot(exp(-x^2))
5. Resolved issue with odesolve in reverse time direction
6. Desolve now handles linear system with constant coefficients; for example, desolve([y'=[[1,2],[2,1]]*y+[x,x+1],y(0)=[1,2]]);
7. Resolved issue with int(surd(2x,3),x,0,4), and with simplify(sin^2+cos^2)
8. Improved display for some sqrt results like sqrt(2+sqrt(3)) as sqrt(2)/2+sqrt(6)/2
9. Resolved issue with speed of int(x*exp(-x^2),x,0,100)
10. Resolved issue with derivative of composition e.g. (g(x^2))'
11. Resolved issue with desolve([y''-2*y'/x+(9+2/x^2)*y=x*exp(x),y(pi/6)=0,y(pi/3)=0],y)
12. Make SVD (SVL) work on rectangular matrices.
13. Change interpretation of A/B where B is a square matrix to inv(B)*A with a warning
14. Resolved issue with integer factorization.
15. Make limit(1/x^2,x,0) return +infinity instead of unsigned infinity
16. Resolved issue with laplace(exp(a*x),x,t)
17. Resolved issue with ilaplace(exp(-3x))
18. Resolved issue with sigma notation
19. Resolved issue with sign (-> also fixes laplace(x))
20. Make ifactor return an error if number too large
21. Resolved issue with recursion issue in geometry objects evaluation
22. Resolved issue with inv((5.+8i)^200)
23. Resolved issue with tan(54) in degree mode
24. Resolved issue with matrix/vector * object, if one arg to * is approx, evalf the other one with current context modes (instead of null context).
25. Extend cholesky to hermitian complex matrices
26. Resolved issue with ifactor(nextprime(alog10(17))*nextprime(alog10(19)));
27. Resolved issue with collect(sqrt(4x^2)) and for solve(-x+1=surd(-x^3+7,3));
28. Resolved issue with int(int(sqrt(x+y),x,0,1),y,0,1)
29. pa2b2(2) now returns [1,1]
30. legendre_symbol and jacobi_symbol now accept negative first argument
31. Resolved issue with algebraic extension with i inside
32. op added to list of non auto simplified operators + dichotomic search
33. Default interval changed for parabola
34. Make left and right accept an integer represented as a double as 2nd argument
35. Set max list size to 10 000 and compute factorial exactly up to 1000 on hardware
36. Resolved issue with hadamard on numeric matrices
37. Size limit check added for $, Ans support for SCALE/SCALEADD/...
38. Resolved issue with re/im/abs e.g. im(sqrt(x)+1)
39. Size check added for JordanBlock, fix for solve with fractional powers,
40. Resolved issue with iPart with neg argument
41. element added to the list of functions that should not be auto simplified
42. RANDMAT with one argument accepted.
43. Changes for triple matrix norm (l1norm, l2norm, linfnorm)
44. Resolved issue with resultant with num coeffs
45. mat2list sets HP list subtype for the result.
46. Resolved issue with plotfunc(normald(x))
47. area now accepts a function plot as first argument, 2nd argument a..b, or 2nd argument a, 3rd argument b, returns area under curve. For a parametric plot, a and b are the parameter range.
48. ifactor check added for qsieve failure
49. Resolved issue with ARG in degree
50. Resolved issue with fPart/iPart for negative/complex arguments
51. Resolved issue with asin(sin(pi))) and acos(cos(pi)) in degree
52. Change for [] in CAS: start at 1
53. Resolved issue with definite integral with inf boundary in degree mode
54. Replace warning by error for recursive definition except for when/ifte/program
55. Improve non-directional limit, e.g. limit(1/abs(x),x,0)
56. Enable for and if as lowercase synonyms for FOR and IF in the CAS.
57. Make REDIM and REPLACE (CAS version) accept a matrix instead of a variable name as 1st arg.
58. Resolved issue with regroup(inf) and for FP
59. Resolved issue with poisson_cdf with 3 arguments
60. Resolved issue with circle tangent, using relative error instead of absolute error.
61. Handling of inequalities with approximate coefficients using an exact conversion
62. jordan for numeric matrix with exact coefficients but no exact eigenvalue converting to approx.
63. Resolved issue with assume(s<0); sign(s)
64. Tangent for conics now use rational parametric equation
65. Resolved issue with a%%b if b is not an integer
66. Resolved issue with locus, fix for table print/parse
67. Resolved issue with l2norm
68. Re-set angle mode in isopolygon.
69. Leave propfrac unsimplified
70. Make sum eval approx if exact mode is not checked
71. Boolean operators now return 1/0
72. Resolved issue with col, suppress and makemat (indices starting at 1)
73. Better handling for some 4th order equations.
74. Set complex_variables to false in arcLen so that arcLen(x^2,x,0,1) works if Complex is checked.
75. Additional check for duplicate argument name in CAS program exit.
-------------------------
Date Released: 2014/03/31
Internal Versions
-----------------
Firmware Version: 2014 03 31 (6030)
Virtual Calculator Version: 2014 03 31 (6031)
Connectivity Kit: 2014 03 31 (6026)
Description
-----------
This release of the Prime Calculator firmware and associated PC software delivers significant new features and fixes outstanding issues. This document is not a complete list of all changes, but highlights specific items. All users of the HP Prime calculator are encouraged to upgrade for the best possible experience.
Backward Compatibility
----------------------
There is limited backward compatibility between this and earlier releases.
Older Prime hardware (Revision A) does support this release, however the wireless, unit-to-unit, and data streamer functionality is not supported on earlier models. In the Help->About HP Prime screen the hardware revision will be displayed along with software version information. Mixing and matching software revisions is not encouraged and may cause unexpected results. Users are strongly encouraged to first backup their calculators with the older firmware and Connectivity Kit - then upgrade all their calculator software (firmware, Connectivity Kit, and Virtual Calculator). Upgrade the Connectivity kit first, before upgrading your calculator firmware. This order will produce the best experience.
The geometry application and inference have received significant updates and earlier data files will not be compatible. Old data files from earlier revisions will not load and and a new empty data file will overwrite the old one.
Due to some specific issues resolved, certain user programs may not run on the new system without changes first. Specifically, any commands with the Σ character in the name may need to be corrected to use the correct sigma character. Function variables will now also error if the function parameter is using a reserved system function name (example: SIN or COLOR). Additionally, the TRIANGLE commands were modified to allow TRIANGLE, LINE and FILLPOLY to share similar data and syntax to enable easier creation of complex 3D drawings
New Functionality (Connectivity Kit)
------------------------------------
1. Application has had major improvements to the user interface. Please refer to the included connectivity kit User's Guide for instructions and details.
2. Support for the HP Wireless Classroom network has been introduced. Please see http://www.hp.com/calculators/ for details on the Wireless Classroom kit.
3. Greatly enhanced communication speed over USB link to calculator.
New Functionality (Calculator Software)
---------------------------------------
1. Improved touch support throughout system. This includes pinch to zoom support in graphing applications, and kinetic scrolling.
2. Pressing HELP in an open command line will attempt to find the name of a command based on the prior input up to the cursor position to display system help for that command.
3. Includes Edition 2 of the on calculator help files (English only in this release).
4. Greatly enhanced robustness and capability of the Statistics 2Var logistic fit.
5. Wireless support for capable units turned on. Wireless icon will appear in the right top corner menu for units that can support the HP Prime Wireless Kit.
6. Calculator unit-to-unit communications has now been enabled on units that can support it.
7. Numerical values now can be displayed with digit groupings. Examples include: 1,234.567 1 234.567 and 1’234,567
8. Two new numerical display formats have been introduced. These are “floating” which only displays up to a specified number of digits, and “rounded” which is similar to the “fixed” format except trailing zeros are suppressed.
9. Decimal fractions now appear with a zero, as in 0.25.
10. Vectors are now displayed as a single line object until they become a matrix. This aids in distinguishing vectors and matrices.
11. User selectable first day of week setting for use through the system.
12. First boot unlock and settings wizard. User will be asked to confirm language selection and some initial settings.
13. Inference application now can do Chi-Square calculations and Linear Regression T calculations.
14. Geometry application has been completely redone and is much faster, consistent, and capable than before.
15. Enhanced color pickers allow a greater range of color selection.
16. Pressing ENTER will now open chooser in a dialog or toggle checkbox.
17. Enhanced unit object display to ensure a more standard form with complex units.
18. TRIANGLE, FILLPOLY and LINE commands can now draw multiple objects in a consistent way with each other. Useful for very complicated 3D drawing in user programs.
19. INPUT command can now create multi-page dialogs and contain choose boxes, check boxes and grouped check boxes. It can also allow specific item types and gives control of parsing behavior for input. It also supports size and position control.
New Functionality (Virtual Calculator)
--------------------------------------
1. A horizontal skin has been included for use with monitors that are restricted in the vertical pixel range.
Resolved issues and changes excluding CAS
-----------------------------------------
1. Resolved issue with statistics 2 variable trig fit causing poor curve fit.
2. Resolved issue with removing last row or column from a CAS matrix in the matrix editor.
3. Resolved issue with .^ and ./ function calculations.
4. Resolved issue with EDITLIST/EDITMAT commands not working in RPN mode.
5. Resolved issue with BLIT command when specified destination was a zero sized region.
6. Resolved several issues with fraction key in home to make behavior more consistent.
7. Resolved issue in 2D integral template where EEX key would always add a 1 before the E in the evaluation limit locations.
8. Resolved several issues where integer only settings fields would display using the current display setting.
9. Resolved issue where auto power off did not function in graphing applications.
10. Resolved issue with commands EDITLIST and EDITMAT using user defined variables.
11. Resolved issue with key buffer not being cleared when the user aborts a running program.
12. Resolved issue with auto off timer in plot gallery not being reset on user touch.
13. Resolved issue with auto-off timer in plot gallery not being reset on user input.
14. Resolved issue with copy and paste in spreadsheet.
15. Resolved issue with sigma character in command names not being consistent through entire system.
16. Resolved issue with RETURN call inside repeating loop in a user program.
17. Resolved issue with object printing in debugging interface causing unpredictable behavior.
18. Resolved problem with integration calling ABS(F1(X))
19. Resolved issue with G0-G9 in user programs while spreadsheet was active application.
20. Resolved issue with 10 second periodic wakeup during sleep reducing long term shelf life.
21. Resolved issue with KWh in menu needing to be named kWh to function properly.
22. Resolved issue where storing a number to a vector padded with too many zeros.
23. Resolved issue with clicking EDIT menu after deleting last CAS object from memory manager catalog.
24. Resolved issue with negative and STO conversion shortcut.
25. Resolved issue where tapping an item in Advanced Grapher Symbolic view behaved differently then tapping edit menu key.
26. Resolved issue where calculating integration with boundary at 0 appeared to fail.
27. Resolved issue with case sensitivity in note and program catalog.
28. Resolved issue where changing font size could cause strange artifacts in 2d equation display in Symbolic view.
29. Resolved problem where copying .+ or .- operators would not insert space before commands.
30. Resolved issue with ΣLIST and a vector argument.
31. Resolved some issues with F1 and CAS interaction.
32. Resolved issue with the UNITS -> TOOLS menu commands not evaluating immediately in RPN mode.
33. Resolved issue with eigenvectors of diagonal matrices in home.
34. Resolved issue where DMS toggle on home screen did not work with certain numbers.
35. Resolved issue with RPN stack not being cleared by a clear in memory manager.
36. Resolved issue where changing HEX or other similar settings did not update stack display immediately.
37. Resolved issue where clearing memory from catalog did not clear Ans variables.
38. Resolved issue where pressing BKSP on a CAS variable from chooser did not delete it.
39. Resolved issue where CAS screen would have left/right alignments disrupted after a power cycle.
40. Resolved issue with logb and very tiny values.
Resolved issues and changes in CAS
----------------------------------
1. Resolved issue with for desolve([y'=sqrt(y),y(1)=1],x,y)
2. Resolved issue with units in approx mode and auto simplification on units
3. Added check for real matrix in SVD
4. Resolved issue with tlin(cos(a)*cos(b)) and with plot(exp(-x^2))
5. Resolved issue with odesolve in reverse time direction
6. Desolve now handles linear system with constant coefficients; for example, desolve([y'=[[1,2],[2,1]]*y+[x,x+1],y(0)=[1,2]]);
7. Resolved issue with int(surd(2x,3),x,0,4), and with simplify(sin^2+cos^2)
8. Improved display for some sqrt results like sqrt(2+sqrt(3)) as sqrt(2)/2+sqrt(6)/2
9. Resolved issue with speed of int(x*exp(-x^2),x,0,100)
10. Resolved issue with derivative of composition e.g. (g(x^2))'
11. Resolved issue with desolve([y''-2*y'/x+(9+2/x^2)*y=x*exp(x),y(pi/6)=0,y(pi/3)=0],y)
12. Make SVD (SVL) work on rectangular matrices.
13. Change interpretation of A/B where B is a square matrix to inv(B)*A with a warning
14. Resolved issue with integer factorization.
15. Make limit(1/x^2,x,0) return +infinity instead of unsigned infinity
16. Resolved issue with laplace(exp(a*x),x,t)
17. Resolved issue with ilaplace(exp(-3x))
18. Resolved issue with sigma notation
19. Resolved issue with sign (-> also fixes laplace(x))
20. Make ifactor return an error if number too large
21. Resolved issue with recursion issue in geometry objects evaluation
22. Resolved issue with inv((5.+8i)^200)
23. Resolved issue with tan(54) in degree mode
24. Resolved issue with matrix/vector * object, if one arg to * is approx, evalf the other one with current context modes (instead of null context).
25. Extend cholesky to hermitian complex matrices
26. Resolved issue with ifactor(nextprime(alog10(17))*nextprime(alog10(19)));
27. Resolved issue with collect(sqrt(4x^2)) and for solve(-x+1=surd(-x^3+7,3));
28. Resolved issue with int(int(sqrt(x+y),x,0,1),y,0,1)
29. pa2b2(2) now returns [1,1]
30. legendre_symbol and jacobi_symbol now accept negative first argument
31. Resolved issue with algebraic extension with i inside
32. op added to list of non auto simplified operators + dichotomic search
33. Default interval changed for parabola
34. Make left and right accept an integer represented as a double as 2nd argument
35. Set max list size to 10 000 and compute factorial exactly up to 1000 on hardware
36. Resolved issue with hadamard on numeric matrices
37. Size limit check added for $, Ans support for SCALE/SCALEADD/...
38. Resolved issue with re/im/abs e.g. im(sqrt(x)+1)
39. Size check added for JordanBlock, fix for solve with fractional powers,
40. Resolved issue with iPart with neg argument
41. element added to the list of functions that should not be auto simplified
42. RANDMAT with one argument accepted.
43. Changes for triple matrix norm (l1norm, l2norm, linfnorm)
44. Resolved issue with resultant with num coeffs
45. mat2list sets HP list subtype for the result.
46. Resolved issue with plotfunc(normald(x))
47. area now accepts a function plot as first argument, 2nd argument a..b, or 2nd argument a, 3rd argument b, returns area under curve. For a parametric plot, a and b are the parameter range.
48. ifactor check added for qsieve failure
49. Resolved issue with ARG in degree
50. Resolved issue with fPart/iPart for negative/complex arguments
51. Resolved issue with asin(sin(pi))) and acos(cos(pi)) in degree
52. Change for [] in CAS: start at 1
53. Resolved issue with definite integral with inf boundary in degree mode
54. Replace warning by error for recursive definition except for when/ifte/program
55. Improve non-directional limit, e.g. limit(1/abs(x),x,0)
56. Enable for and if as lowercase synonyms for FOR and IF in the CAS.
57. Make REDIM and REPLACE (CAS version) accept a matrix instead of a variable name as 1st arg.
58. Resolved issue with regroup(inf) and for FP
59. Resolved issue with poisson_cdf with 3 arguments
60. Resolved issue with circle tangent, using relative error instead of absolute error.
61. Handling of inequalities with approximate coefficients using an exact conversion
62. jordan for numeric matrix with exact coefficients but no exact eigenvalue converting to approx.
63. Resolved issue with assume(s<0); sign(s)
64. Tangent for conics now use rational parametric equation
65. Resolved issue with a%%b if b is not an integer
66. Resolved issue with locus, fix for table print/parse
67. Resolved issue with l2norm
68. Re-set angle mode in isopolygon.
69. Leave propfrac unsimplified
70. Make sum eval approx if exact mode is not checked
71. Boolean operators now return 1/0
72. Resolved issue with col, suppress and makemat (indices starting at 1)
73. Better handling for some 4th order equations.
74. Set complex_variables to false in arcLen so that arcLen(x^2,x,0,1) works if Complex is checked.
75. Additional check for duplicate argument name in CAS program exit.
Résumons la chose en reprenant les points qui nous ont marqués. Première très mauvaise surprise, contrairement à ce qui avait été indiqué dans toutes les annonces de la HP-Prime, nombre de fonctionnalités qui y étaient mises en avant sont désormais désactivées sur les premiers modèles en révision matérielle A:
- modules sans-fil
- communication directe entre deux calculatrices
- collecte de données physiques (application DataStreamer)
Les informations textuelles accompagnant le dernier firmware semblent indiquer qu'il a été décidé de ne rien faire pour supporter ces fonctionnalités sur ces révisions matérielles A.
Si les révisions matérielles A au delà des prototypes concernent également les premières HP-Prime de production vendues à partir de septembre 2013, cela ressemble à un gros cafouillage de la part de HP, avec un manque d'anticipation ayant amené des modifications matérielles majeures en cours de production.
Et dans ce cas-là, les personnes ayant acheté la calculatrice dès le début suite aux publicités vantant l'arrivée rapide du support sans-fil auraient été trompées.
- de gérer les systèmes de suites récurrentes comme l'on en recontre dans les enseignements de spécialité en Terminale S et ES
- de gérer les suites commençant au rang 0, ce qui est le cas de la quasi totalité des suites vues dans l'enseignement secondaire en France - l'application les fait automatiquement commencer au rang 1, ce qui est l'usage en Amérique du Nord
Ceux qui ont fait le choix de la HP-Prime en Terminale devront donc se taper divers accrobaties qui nécessitent un certain recul mathématique.
En ce sens, la HP-Prime semble rester à ce jour un mauvais choix dans l'enseignement secondaire français - et je le regrette sincèrement, car vu son potentiel c'est un véritable gâchis.
- les plantages ou redémarrages aléatoires de la calculatrice obtenus facilement et sans être recherchés lors de diverses manipulations régulières et banales semblent toujours présents (déjà rien que ce soir, sur la réception de programmes, sur l'édition de programmes, sur le branchement de l'USB...)
- problème de fuites/nettoyage de mémoire, empêchant l'exécution de certains programmes avec des messages d'erreurs incompréhensibles ou inappropriés jusqu'à-ce que l'on redémarre la calculatrice
Mais peut-être va-t-on m'expliquer que le code corrigeant ces problèmes lui aussi ne fonctionne pas sur la révision matérielle A ?
Par contre, mViewer GX fonctionne toujours à la perfection !
De plus, la gestion de l'écran tactile a été fortement améliorée:
- il est par exemple désormais possible de zoomer de façon très réactive dans les graphiques
- le défilement/scrolling comprend désormais un facteur cinétique qui lui permet de prendre de l'élan et continuer de façon naturelle (ralentissement progressif) une fois le retrait du doigt, ce qui est fort apprécié dans le lecteur de documents mViewer GX !
Au final, c'est donc un bilan très mitigé et contrasté.
Il y a certes eu du gros travail de la part de l'équipe de développement, mais avec des priorités de développement qui ne vont pas dans l'intérêt de l'utilisateur/élève/étudiant.
(qui en Amérique du Nord n'est souvent pas l'acheteur, les calculatrices étant prêtées aux élèves par leur école)
C'est bien joli d'avoir des réseaux de calculatrices sans-fil pour la classe et les enseignants, mais faudrait-il encore, dans l'intérêt des élèves, que les calculatrices participant à ces réseaux soient capables de fonctionner correctement...
La HP-Prime n'est visiblement toujours pas au point après des mois, et n'aurait jamais dû sortir pour la rentrée 2013.
C'est un produit non fini qui a été commercialisé, digne d'une démo ou d'un prototype, et si la prochaine mise à jour doit encore demander des mois à l'équipe de développement la calculatrice ne sera pas davantage prête pour la rentrée 2014.
Tout ceci peut donner une impression d'amateurisme de la part de HP, et n'ayant pas suivi le développement des HP-49/50 j'ignore si c'est habituel.
- soit on met tout ceci sur la taille trop restreinte de l'équipe de développement de la "petite" branche HP-Education
- soit on l'explique simplement par le fait que les enseignants/institutions sont prioritaires pour les nouveautés et corrections, puisque dans la vision "américanisée" du monde par HP ce sont eux les acheteurs
- soit, avec le marché actuel de l'éducation qui semble évoluer de plus en plus vers les tablettes tactiles, produit ludique non initialement prévu pour ça, HP n'a tout simplement jamais cru en la HP-Prime, et il s'agissait juste de développer/tester à moindre coût et rapidement des classes virtuelles, fonctionnalité qui manque aux tablettes - les retours de tests pouvant ensuite être réutilisés pour le développement d'un futur produit conforme à l'évolution du marché
Dans les deux derniers points, il y aurait peu d'espoir d'avoir un jour une calculatrice HP-Prime stable et fiable.
Espérons que je me trompe avec mon scepticisme induit par des mois d'attente et d'espérance.
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