Mise à jour 2.01.4000 pour fx-CP400/CG500

[critor]

I can't check for the moment.

I think it's in the program editor.

[numbermaniac]

If anyone's interested, it looks like they "fixed" a bug with simplify on trig expressions in this update. I reported a bug to Casio in March about how a certain trig expression returns two different results with tExpand and simplify, because simplify's answer was incorrect. They've now changed the behaviour of simplify so that it doesn't do anything at all to this expression, rather than giving an incorrect answer. The following attachment shows the different outputs between tExpand and simplify, as well as the new output of simplify in this update:

I would've expected simplify to do the same simplification that tExpand does, but I guess not ¯\_(ツ)_/¯

[critor]

Hence the "Calculation capability improvement" they were mentioning.
Thanks for solving this mystery.