How to use a variable in the piecewise command http://tibasicdev.wikidot.com/forum/t-12909016/how-to-use-a-variable-in-the-piecewise-command Posts in the discussion thread "How to use a variable in the piecewise command" Sun, 14 Jun 2026 23:08:09 +0000 http://tibasicdev.wikidot.com/forum/t-12909016#post-4466619 Re: How to use a variable in the piecewise command http://tibasicdev.wikidot.com/forum/t-12909016/how-to-use-a-variable-in-the-piecewise-command#post-4466619 Sun, 12 Jan 2020 06:02:54 +0000 Trenly 1905506 Not for the piecewise( command. The CE and CSE are a little different than the 83/34/+/SE

]]> http://tibasicdev.wikidot.com/forum/t-12909016#post-4466491 Re: How to use a variable in the piecewise command http://tibasicdev.wikidot.com/forum/t-12909016/how-to-use-a-variable-in-the-piecewise-command#post-4466491 Sun, 12 Jan 2020 02:47:21 +0000 QubicQuantum 6020574 wouldn't you need a Str>Expr command?

]]> http://tibasicdev.wikidot.com/forum/t-12909016#post-4464259 Re: How to use a variable in the piecewise command http://tibasicdev.wikidot.com/forum/t-12909016/how-to-use-a-variable-in-the-piecewise-command#post-4464259 Thu, 09 Jan 2020 00:43:50 +0000 ProfLisa 5931841 Yes, this worked, thank you!

]]> http://tibasicdev.wikidot.com/forum/t-12909016#post-4463667 Re: How to use a variable in the piecewise command http://tibasicdev.wikidot.com/forum/t-12909016/how-to-use-a-variable-in-the-piecewise-command#post-4463667 Wed, 08 Jan 2020 04:55:15 +0000 Trenly 1905506 I'm doubtful it will work either, but looking at the example code on the command page, it looks like it is just storing a string into Y3, which is why I thought that concatenation may do the trick

]]> http://tibasicdev.wikidot.com/forum/t-12909016#post-4463662 Re: How to use a variable in the piecewise command http://tibasicdev.wikidot.com/forum/t-12909016/how-to-use-a-variable-in-the-piecewise-command#post-4463662 Wed, 08 Jan 2020 04:39:31 +0000 Myles_Zadok 2935702 I would try TrenlyTrenly's suggestion, but I don't think that will work (please let me know if it does in fact work), because conditionals are a mixture of variables and conditional operators. The calculator does not seem to read the expressions the way it reads a string. The only work around I can think of would be to use a menu(s) to give the user the ability to select the desired conditional parameters.

]]> http://tibasicdev.wikidot.com/forum/t-12909016#post-4463387 Re: How to use a variable in the piecewise command http://tibasicdev.wikidot.com/forum/t-12909016/how-to-use-a-variable-in-the-piecewise-command#post-4463387 Tue, 07 Jan 2020 20:02:38 +0000 Trenly 1905506 You could try string concatenation

“piecewise(Y1,”+Str1+”,Y2,”+Str2→Y3

]]> http://tibasicdev.wikidot.com/forum/t-12909016#post-4463311 Re: How to use a variable in the piecewise command http://tibasicdev.wikidot.com/forum/t-12909016/how-to-use-a-variable-in-the-piecewise-command#post-4463311 Tue, 07 Jan 2020 17:25:54 +0000 ProfLisa 5931841 The first piece of code is
piecewise(Y1,X≥0,Y2,X<0→Y3

This shows the conditions as being hard-coded values, not variables. I would like to do this:
piecewise(Y1,Str1,Y2,Str2)

I'm not sure you read my post completely.

]]> http://tibasicdev.wikidot.com/forum/t-12909016#post-4462624 Re: How to use a variable in the piecewise command http://tibasicdev.wikidot.com/forum/t-12909016/how-to-use-a-variable-in-the-piecewise-command#post-4462624 Mon, 06 Jan 2020 21:03:16 +0000 Trenly 1905506 —Thread Moved

The piecewise( command page shows how to do this in its first section of code

]]> http://tibasicdev.wikidot.com/forum/t-12909016#post-4462604 How to use a variable in the piecewise command http://tibasicdev.wikidot.com/forum/t-12909016/how-to-use-a-variable-in-the-piecewise-command#post-4462604 Mon, 06 Jan 2020 20:20:41 +0000 ProfLisa 5931841 I am writing a program that would allow the user to input two functions and two intervals and then graph the piecewise defined function.

:"piecewise(Y1, X≤0, Y2,X>0)”→Y3
:DispGraph

works fine but I would like to replace the "X≤0" and "X>0" with string inputs. However this results in a data type error. Any suggestions?

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