>From the Maxima language, it's possible to call a CL function, say
?cadr(a+b+c) --> a, but other than calling a CL function from the
Maxima language, there isn't any way to, as you say, make a Maxima
function with Lisp code inside.
Within Maxima code, I suggest sticking to higher-level Maxima
functions instead of inserting calls to CL functions such as
?cadr(a+b+c) --> a. Your code will be easier to maintain, error
messages will be more understandable, and your code will be protected
from changes to Maxima data structures
Barton
-----maxima-bounces at math.utexas.edu wrote: -----
>To:?maxima at math.utexas.edu
>From:?Adam?Majewski?<adammaj1 at o2.pl>
>Sent?by:?maxima-bounces at math.utexas.edu
>Date:?11/10/2009?10:35AM
>Subject:?Re:?[Maxima]?lisp?and?Maxima
>
>Dear?Barton?,
>
>Thx?for?your?answer.
>I?usually?work?with?batch?files.
>
>Is?it?a?good?choice?to?have?a?program?with?some?code?in?Lisp?and?some
>code?in?Maxima??
>
>Should?I?keep?Lisp?code?in?different?file?then?Maxima?code?(?as?a?package)
>?
>
>Is?it?a?good?idea?to?make?Maxima?function?with?Lisp?code?inside??
>
>Adam
>
>
>
>>?If?you?need?to?work?with?arrays,?IEEE32?floats,?IEEE32?complex?floats,
>>?hash?tables,?or?do?a?great?deal?of?complex?number?big?float
>>?arithmetic,?use?CL,?not?Maxima.?Also,?if?you?need?to?define?a?data
>>?structure,?such?as?a?something?similar?to?a?Pascal?record,?use
>>?CL.?Finally,?if?you?want?to?write?OO?code,?use?CL.
>>
>>?If?the?code?will?mostly?do?calculus-like?things?(expand,?factor,
>>?solve,?integrate,?substitute,?...),?use?Maxima.?It's?likely?that?your
>>?code?will?be?no?longer,?and?will?be?easier?to?write?and?debug.?Also,
>>?you'll
>>?have?fewer?problems?with?confusion?over?expressions?in?CRE?form?or
>>?general?form.?Finally,?more?users?will?understand?your?code?and?be
>>?able?to?improve?it.?Don't?assume?that?compiled?CL?code?will?run?10
>>?times?faster?than?compiled?Maxima?code.?It's?unlikely?that?it?will.
>>
>>?Also,?it's?possible?to?write?simplifying?functions?in?Maxima.
>>
>>?Barton
>>
>>?maxima-bounces at math.utexas.edu?wrote?on?11/09/2009?02:48:41?PM:
>>
>>>?[image?removed]
>>>
>>>?[Maxima]?lisp?and?Maxima
>>>
>>>?Adam?Majewski
>>>
>>>?to:
>>>
>>>?maxima
>>>
>>>?11/09/2009?02:49?PM
>>>
>>>?Sent?by:
>>>
>>>?maxima-bounces at math.utexas.edu
>>>
>>>?Hi,
>>>
>>>?There?are?some?possibilities?of?using?Lisp/Maxima?:
>>>?-?Lisp?function?or?whole?Lisp?unit
>>>?-?mixed?Maxima?and?Lisp?code
>>>?-?only?Maxima?code.
>>>
>>>?Is?it?possible?to?give?some?hints?what?should?one?choose??
>>>
>>>?Regards
>>>
>>>?Adam
>>>
>>>?_______________________________________________
>>>?Maxima?mailing?list
>>>?Maxima at math.utexas.edu
>>>?http://www.math.utexas.edu/mailman/listinfo/maxima
>
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