i want '*' to keep doing exactly what it already does. for example, x*x*x*x is still x^4.

but furthermore, i want to be able to somehow redefine(define in addition) '*' as follows:

protect('a');protect('b');

redefine('*', a*b=1,b*a=-1);

basically, for protected letters a and b, maple...

How can I plot f(x,y)=(cos(x^2+y^2))^1/2 whithout knowing the domain?

And then having Maple to find the domain and plot it?

Thanks.

I have a package, a zip file, written by someone, it consists three files, as seen below

what this package, let's call it helloworld, offers is the following:

all i need to do is extract those three files shown (hdb, ind, lib) into C:\Program Files (x86)\Maple 12\lib

then once i type with(helloworld):

1, it modifies the...

hi

i want to solve following equation

f(s)=a+b*s+c*s^2

with these condition

f(0)=0

f'(0)=0

f'(5)=1

please help me

thancks

hi,

please Help me in the following code :

> restart;
i:=0;
             
u[i](s):=A+B*s-C*exp(-s);
              
lambda(s,x):= -(1/2)*(s-x)^2;
                    

tre(s,x):=lambda(s,x)*(diff(u[i...

I have a set of nonlinear and coupled PDEs for a cable actuated system. I want to transfer this set to a set of ODEs and write it down in Matrix form. I used Galerkin's method and derived the ODEs in discritized form. I have a problem in converting this set of equation into a matrix form like "Mq"+Cq'+Kq=F". The derived equations are very complicated and contains some nonlinear terms. One of the three equations looks like this:

i want to create my own package Helloworld (includes proc1 and proc2) so that people can do

with(Helloworld);

and get

[proc1,proc2]

and then they can then use proc1 and proc2 as they wish.

thanks in advance

Hi

When the numerator of a quotient is a negative integer, Maple puts the quotient into parentheses and the negative sign before the quotient (not with the numerator). Here is an example:

with(RandomTools);
a1 := Generate(integer(range = -10 .. -1));
Limit(a1/(x-3), x = 3, right);

I would like to have the negative sign with the numerator and to remove the parentheses.

I tried to export the limit in MathML, but it didn't work.

In...

hi,

i want to solve this equation :

f(n+1)(x)=f(n)(x)-int [ (s-x)^2 * ( F"(n)(s)+.5*F(n)(s) ) ds]

 integration is from  -infinity  to  x

with this initial guess   f(0)(x)=A+Bx+C*exp[-x]

i want for example F(4)(x) in terms of A,B,C

 and then calculate A,B and C with this condition

f(0)(4)=0

f'(0)(4)=0

f'(10)(4)=1

please help me

thancks

Dear guys

I have an expression and I solve it by "solve". It has two results and I want to choose first of them. How can I choose for example the first result? Is the order of results the same if I run the program many times?

For the following system:

x1 := M*(cos(phi)-a*cos(3*phi)) / (1-b*cos(2*phi))

x2 := M*(cos(phi)+a*cos(3*phi)) / (1+b*cos(2*phi))

y1 := M*(sin(phi)-a*sin(3*phi)) / (1-b*cos(2*phi))

y2 := M*(sin(phi)+a*sin(3*phi))/ (1+b*cos(2*phi))

I'd like to find M(x1,x2,y1,y2) if possible; that is, I'd like to solve for M in terms of x1, x2, y1, and y2, eliminating a, b, and phi.

I've tried

solve({x1=X1, x2=X2, y1=Y1, y2=Y2},{M,a,b,phi},AllSolutions);

SHA-0.3.zip includes a Maple archive and help data base that implement the SHA algorithm (SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512).  The implementation is interpreted Maple, so will be considerably slower than a compiled routine, but these should be fast enough for likely uses in Maple.  For example

CodeTools:-Usage(SHA("The quick brown fox jumps over the lazy dog", 512));
memory used=502.00KiB,...

Hello all,

 Is any anyone know how good is maple numeric stiff ode solver (stiff=true) ? What i mean is how many stiff ode's it can handle at a given time. I am having a hardtime solving a system of ode's (say 300 stiff ode's). Is there any other numeric stiff ode solver in maple that can handle large number of ode's?

I used islode advanced numeric solver for stiff ode's and it also has some limitations on the number of ode's and moreover it is slow.

I have been investigating Predator-Prey spatial models, e.g.