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This forum is locked: you cannot post, reply to, or edit topics. 68k Calculator Basic => TI-BASIC
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Joined: 02 Mar 2009
Posts: 1

Posted: 02 Mar 2009 04:44:38 pm    Post subject:

Is there a way to save an equation to an expression variable without having it being evaluated first?
For example, I have an equation y = x^2 + 2 * x^2 in a string variable call eqstr, to save it to
an expression variable eqexpr, I wrote: expr(eqstr) -> eqexpr. But now eqexpr contains y = 3 * x^2
instead of y = x^2 + 2 * x^2.

I know the numeric solver can do this, but don't know if it can be done in TI-Basic. If anybody has any idea,
please let me know. Thanks for your help. BTW, I'm programming for the the TI-89 Titanium.
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ceci n'est pas une |

Super Elite (Last Title)

Joined: 04 Nov 2003
Posts: 8328

Posted: 02 Mar 2009 07:09:44 pm    Post subject:

The only way to avoid simplification is to keep it stored as a string. What precisely do you need the unsimplified version of the expression for?
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