TI-Nspire: Transmit Parameters to Func/Prog

Question

The Background
I'm trying to program a function for TI-Nspire CAS Handheld. The function should determine the properties of one or more matrices like orthonormality.

The Problem
I don't know how to transmit the matrices as parameters to the function. Does someone know if it's possible, or know any syntax example?

(I was linked here from following site: http://tibasicdev.wikidot.com/forum/t-1150809/parameters-ti-nspire-cas)

It looks like you can use Lua to program it. Look up passing matrices as parameters in Lua. — Millie Smith, Mar 22 '15 at 20:26

score 1 · Answer 1 · answered May 01 '15 at 07:42

1

Functions defined normally can take matrices as arguments. Here is a screenshot from a Notes window:

enter image description here

answered May 01 '15 at 07:42

soegaard

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What is wrong with the second line define? The green "false" is a comment, isn't it? – A.Lymphater May 02 '15 at 09:03
The blue is the input, the green is the output. – soegaard May 02 '15 at 09:52
The first line defined a function is_det_zero and the second line shows how to use it. The example demonstrates that functions can take matrices as arguments. – soegaard May 02 '15 at 09:52
So the green false just means that the determinant of [[1 2][3 4]] is not zero. – soegaard May 02 '15 at 09:54

score 1 · Accepted Answer · answered Aug 05 '21 at 06:59

It depends:

If you are trying to do in TI-Basic you simply pass the matrix as a parameter (if you don't want to do that, store it in a global variable and access it directly).

If you are doing it from a Lua program, it's a little more complicated, because TI-Basic doesn't support tables inside matrices, while Lua does. For example, you could try math.eval("MyCalculatorFunction({{1,2},{3,4}})") which would call the TI-Basicfunction "MyCalculatorFunction" with the 2x2 matrix: [1 2] [3 4]. But you CANNOT do math.eval("MyCalculatorFunction({{{1}}})"), because TI-Basic doesn't support 3D Matrices.

Also, from a Lua script you can only call TI-Basic FUNCTIONS (NOT PROGRAMS). That means, you can't do TI-Basic graphics or pop-up windows from a Lua script.

TI-Nspire: Transmit Parameters to Func/Prog

2 Answers2