Subtracting 2 arrays

[krispee_Kreeme]

i have array [ [1,1], [1,2] ] and [ [ 0,2 ] ] is it possible to subtract array 1 to array 2? that way the results will return [ [ 1, -1], [1, 0] ]

[TIMAI2]

You could do it like this:

There is probably a more concise way using the complex list blocks

[ABG]

Matrix Multiplication in Blocks

This is a library of block procedures to accompany the introduction to matrix multiplication at 2.1: Introduction to Matrices - Mathematics LibreTexts Here are draggable blocks for the matrix multiplication procedure and a few sample exercises to show how to represent row and column matrices in AI2 lists. [to Ex_2_1_5 result] [to Ex_2_1_6 result] [to Ex_2_1_7 result] [to matrix_multiply a b result] Example numbers match the link supplied above. Extra procedures in the Project: matri…

For a more general approach

[elmachi130]

In the case that you have 2 labels to subtract?

list 1
5\n8\n7

list 2
4\n6\n4

result should be:
1\n2\n3

[TIMAI2]

Although I doubt it, one day you might get the hang of this

[elmachi130]

There is no doubt that you are an expert on the subject. TIMAI2

I make it more difficult for you by putting a conditional on the result

For example, if one of the results is 0, the text changes color only for that result, 0.
the others must remain the same color

[TIMAI2]

Like this:

You need to set the label to htmlContent in the Designer (check the box)

[elmachi130]

perfect
I had not considered it in html