Hello,

I have an awfully complicated expression depending on three variables m1, m2, m3 and a lot of parameters. When I try to substitute m1, m2 and m3 by 0, 0 and 1 respectively, m1, m2 and m3 are effectively replaced but lots of (0)s and (1)s appear after some of the parameters (and even 0(0), 1(0), 1(1), 0(1)...)

What does this mean and how to avoid it? Following is an example of the problem.

Instruction:

Hi all,

First of all, I would like to mention that I'm new to Maple, so please excuse my lack of knowledge.

I have a rather complicated expression, let us call it expr, and I have a constraint equation, let us call it constr = 0. I would like to simplify expr knowing that constr = 0.

Stupid example:

expr: 2*x+4*y+3

constr: x+2*y = 0

In that case:

expr = 2*(x+2*y)+3 = 2*0+3 = 3

How can I do that?

Thanks a lot.

Hi all,

I must confess I'm a perfect novice in Maple as I'm used to work with Matlab. I have a 3d differential equation, namely:

= 0

The components of M should be of the form M_{i0} + dM_i(t) where M_{i0} is a constant and dM_i(t) a function of t, i = 1, 2, 3. And...