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compsystems · (This post was last modified: 07-10-2017 05:28 PM by compsystems.)

is very interesting that with the simplification of the expression, Xcas can calculate it, the good thing that Bernard Parisse (BP), could improve the command to solve without needing to simplify

{X} means that x = x, that is, it takes all the values of the real numbers

https://www.wolframalpha.com/input/?i=so...%5E2+-+49)

$[Image: casio_classpad_on_pc_image00.png]$

(07-10-2017 04:11 PM)whilealive Wrote: P.. for pupils it is hard to enter nested commands.

Standard notation not RPN or PN involves nesting orders (cmds) within orders

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