Absolute Value on Nspire CAS?

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Summary:

I searched the guidebook and this site and cannot find any reference to absolute value. Is that a missing item or am I just blind?

Absolute Value on Nspire CAS?

John K (guest) 01 Sep 2014 16:57

Hi, all,

I was trying to put a formula in, and couldn't find "absolute value"

f(x) = | x | + x

I know the graph will be
f(x) = 0 when x < 0
f(x) = 2x when x >= 0

But I just wanted to see it on the screen.

HELP?

John K (guest) 01 Sep 2014 17:06

I found it, but that brings up a new question.

I'm so used to the TI-84 family where you had to use the catalog or menu system to put in keywords.

I typed abs(x)+x and it changed it to |x|+x

So now I'm trying to get it graphed. (Just got the old clickpad nspire a few days ago.)

Is there a listing of EVERY KEYWORD that is available on the Nspire CAS (especially in programming mode)?

I'm surprised that abs was not in the index.

John