How to do matrix operation programatically in lisp
Subject: How to do matrix operation programatically in lisp
From: Kun Lin
Date: Sat, 24 Nov 2007 19:10:45 -0500
On Sat, 24 Nov 2007 16:25:00 -0500, Stavros Macrakis
<macrakis at alum.mit.edu> wrote:
> On Nov 24, 2007 12:29 PM, Kun Lin <klin at umd.edu> wrote:
>
>> Maybe i am gonna write a parser so i can do something like
>>
>> (eval (parse-maxima-to-lisp "invert(matrix[1,2],[3,4])"))
>>
>> to automate the conversion between maxima and lisp.
>>
>
> ? I don't understand what you're trying to do here. Maxima already
> includes
> a parser, but why would your Lisp program be representing a matrix or its
> inversion as a string?
>
> -s
Sounds like i might be trying to re-invent the wheel here.
"The #$ Lisp macro allows the use of Maxima expressions in Lisp code.
#$expr$ expands to a Lisp expression equivalent to the Maxima expression
expr."
this is exactly what i am looking for. I just want an easy way to embed
maxima commands in lisp. Basically, if i know what the maxima command is,
i should easily recognize it in my lisp code.
after all #$matrix([1,2],[2,4]))$ is alot easier to read than (($matrix
simp) ((mlist simp) 1 2) ((mlist simp) 2 4)).
And i also just found the maxima::displa function which prints the maxima
expression.
Thank guys for the help!
- Kun