[Maxima-bugs] [maxima:bugs] #520 make_array arrays not well integrated

[Robert D. <rob...@us...>]

- **labels**: Lisp Core --> arrays, display, make\_array
- **Group**:  --> None



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**[bugs:#520] make\_array arrays not well integrated**

**Status:** open
**Group:** None
**Labels:** arrays display make\_array 
**Created:** Tue Feb 24, 2004 01:31 AM UTC by Stavros Macrakis
**Last Updated:** Mon Jul 24, 2006 02:12 AM UTC
**Owner:** nobody


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.


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