Newbie problems with plot2d



On 6/16/2011 9:49 AM, Leo Butler wrote:
>
> carolus<worwor at bellsouth.net>  writes:
>
>> Is there a function that returns the type of a maxima object?
>
> properties(foo)
>
> lists the properties of the symbol foo. For example:
>
> foo(x,y):=x^^y;
> foo:a+5;
> foo[x,y] := x^y;
> properties(foo);
>           [value, array function, hashed array, function]
>
> featurep may also be helpful.
>

Thanks.  By the way, I see now that my idea of using fortran idiom with 
maxima was futile.  Even numerical applications like plotting, 
quadrature, optimization, and differential equations require lists as 
input and output.