Joe Riel

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18 years, 355 days

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These are answers submitted by Joe Riel

StringTools:-Remove is not the procedure you want to use; it is for removing characters from a string.  What you want is probably
StringTools:-Subs(["\\begin{array}{ccc}" = ""], s);

The procedure CodeTools:-Profiling:-Profile can be used to record the number of times a procedure is called.

From the output I'll guess you are located fairly close to Maplesoft; there aren't many hops and they seem reasonably short. On my system there a few more hops, they are longer, and I can see the switch from the US sites to the Canadian sites.

See ?plot,details.  You can use the 'view' option or specify the y-range with an additional range.
plot(x, x=1..2, 'view'=[1..2, -1..2]);
plot(x, x=1..2, -1..2);

In module A, s has to be an export, not a local.

The call `<,>`(a,b,c) is somewhat equivalent to Vector[column]([a,b,c]) and `<|>`(a,b,c) to Vector[row]([a,b,c]). The actual procedures are mainly builtin, but you can inspect the non-builtin part by doing


The help page for Vector describes the row and column options.

Pi/3 is not an integer (in the range 0..10), so fails in u[i,Pi/3]:=0;

CodeTools:-Profiling takes the procedure you want to profile as an argument. You are passing a call to PickAngles.  Try

PickAngles(...);  # appropriate call to exercise the procedure


Not clear that this will help, but in the Logic package you can use &iff. To get the desired looking expression you could do

(&not (P &or Q)) &iff ((&not P) &and (&not Q));

See the help page ?Logic,operators.

You could try using kernelopts('bytesused'). 

It wasn't designed to.  It could be extended but would it be useful?  You can use


Your example isn't ideal in that Describe(1) also fails, with a different error.

The debug button is only active when Maple is computing.  To test it, run the following code in a Maple worksheet.

    for local cnt do
    end do;
end proc();

While it's executing, the debug button should become active.  Press it. The interactive debugger will open.  Click the next button in the debugger a few times to step through the code, then click the quit button.

See the help page for StringTools:-Random.  For example,



@Art Kalb You could achieve that with map(expand@expand, N^%H).  The double expansion is to work around the design of `expand/conjugate`.  A different approach is

distribconj := proc(x)
    subsindets(x, 'specfunc({`*`,`+`},conjugate)', c -> map(conjugate, op(c)));
end proc:



Am not quite sure what you are looking for.  Here I find the value of t so that f(x=1) - f(x=0) = TOL.

tol := 1e-6:
g := exp(-t):
h := unapply((x^2-5*x^3+10*x^5+x+3+.5*x^4)+(1/2)*x^2*(x-1)+2*sin(x),x):
tsol := fsolve((h(1)-h(0))*g = tol, t);
             tsol := 16.03285819
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