ali_hassani

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11 years, 280 days

 

 

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These are questions asked by ali_hassani

In the name of God

Dear my friends

Hi

 I have a function as the following:

 temp:=phi(Lambda(tau, 0), tau, 0)+((D[1](phi))(Lambda(tau, 0), tau, 0)*(D[2](Lambda))(tau, 0)+(D[3](phi))(Lambda(tau, 0), tau, 0))*q;

 I have equivalent functions for Lambda(tau,0) and phi(Lambda(tau,0),tau,0) as the following:

 c[0](tau) instead of Lambda(tau,0)

y[0](c[0](tau),tau) instead of phi(Lambda(tau,0),tau,0)

In the name of God


Dear my friends

Hi

I want to calculate the high-order approximant of taylor series or expansion of f(x) as followings;

g:=taylor(f(x),x=1,60);

g:=expand(f(x));

in which f(x) is a very large expression with respect to x. for example, assume that

f:=x->sum(n*x*sin(n*x),n=1..1000);
g:=taylor(f(x),x=1..60);
Above...

 

In the name of God

Dear friends

Hi

I have a question about releasing a part of memory occupied by some lists, sequences and matrices, for example matrix "M" or list "L".

If we use the following commands to allocate amount of memory for a matrix or list:

M:=Matrix(2000,2000,float[8]);
L:=[seq(equ[i],i=1..10000)]:

where equ[i...

Dear my friends

Hi

I am solving a nonlinear differential equation by Maple. The equation is slarge. A large amount of memory is then required. I have a computer with 8 gigabytes memory. This memory o large and has many terms. Therefore, the algebraic expressions created in process of solving are so is very low to perform some commands of Maple such as "taylor" or "expand". I compel using the "restart" command to clear the memory after saving the results of each...

Hi

My computer has 6 GB RAM and works with Windows Seven 7 (64 bits). When I am running my MAPLE program(Version 12), the MAPLE software needs the large amount of memory. But when the consumed memory exceeds over 2 GB, the CPU and computation  stop. Even if I used the Command {kernelopts(datalimit)}, the software did not allow me to use the memory more than 2097100 KB.

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