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rtoy / maxima

A Clone of Maxima's repo
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make_array arrays not well integrated #2904

Open rtoy opened 3 months ago

rtoy commented 3 months ago

Imported from SourceForge on 2024-07-07 06:21:33 Created by macrakis on 2004-02-24 01:31:55 Original: https://sourceforge.net/p/maxima/bugs/520

make_array arrays are useful but ugly.

They don't print properly:

ar: make_array(any,3)$ ar[1]: sin(x)$ ar => #(NIL ((%SIN SIMP) $x) NIL)

and even worse:

string(ar) => ?\#\(NIL\ \(\(\%SIN\ SIMP\)\ \$x\)\ NIL\)

There is no way to write a constant array, so you can't save it in Maxima form.

It's a pity that the function name "array" is taken... but we could define the external form of an array to be something like:

array_constant( <<type and maybe size>>, [ ...contents... ] )

e.g.

array_constant(any,[2,3,4])

is the same as

block([arr],arr:make_array(any,3), for i:0 thru 2 do arr[i]:[2,3,4][i])

etc.

rtoy commented 3 months ago

Imported from SourceForge on 2024-07-07 06:21:34 Created by robert_dodier on 2006-07-24 02:12:27 Original: https://sourceforge.net/p/maxima/bugs/520/#e2f1