dedicated helper functions to get/set a row/column of a matrix (2D tensor) about algebrite HOT 5 OPEN

let's stick to 2D as you mention - get/set of a row is trivial, as matrixes are stored by rows. Get/Set of a column is less trivial. In the meantime we have a function, just transpose, get/set, then transpose again.

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Does not seems trivial to me at API level (how to set a matrix in JS ?)
BTW I hope I am not too stupid but I cannot figure out why
Algebrite.eval('[[1,2],[3,4]]').toString() gives me "[[-1,-2],[-3,-4]]" .ful CAS
Many thanks for helping me with this wonderfull CAS

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Other points I didn't think about:

• setting a row/column should trigger a check so the number of elements in the row/column is correct
• getting a row/column: should we get a row/column by reference or by value? (to be checked what similar sw does).

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Hi @Jean-MarieL sorry I got confused in a previous comment. Indeed matrices are stored by row, meaning:

a=[[1,2],[3,4]]
a[1]
> [1,2]
a[2] = [5,6]
a
> [[1,2],[5,6]]

so it should be easy to get/set a row.

As for why you'd get Algebrite.eval('[[1,2],[3,4]]').toString() gives me "[[-1,-2],[-3,-4]]" that's indeed very strange. If you keep getting that result please open another issue and we'll look into that further.

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