## 509 Reputation

12 years, 115 days

## Is it possible to show the values of tim...

Maple 2019

Hi all,

I'm using dsolve (numeric) for a system of ODE with initial conditions.

Is it possible to show (at the same time with solving) the values of time and an unknown when solving a system of ODE before the end of calculation. Of course, the calculation time is high and I want to know before the calculation is finished if the solution is converging.

Also, I use the option range in my calculations from 0 to 200s (seconds) and more. I do'nt know how I can speed up the solution with less memory.

Please find in the attached file an example.

dsolve1_1r.mw

## How to get the real and imaginary parts ...

Maple 2016

Hi all,

How to get the real and imaginary parts of this complex expression.

real_imag_parts.mw

## Why I cannot get simple real expressions...

Maple 2016

Hi all,

I have some difficulties to get simple real expressions for those simple integrals with assumptions.

NB: With mathematica, I get simple real expressions results.

Thanks

## How to solve a big system using vectors ...

Maple

Hi

I want to store the matrix m2 representing a system m2*x=b with vectors as given by the command "CompressedSparseForm" and solve the system using those vectors and b without using m2 and b.

Thanks

vectors.mw

 (1)

 (2)

 (3)

 (4)

b

## how to pointplot in 3d...

Maple 2016

Hi

I have the values of of a function A(x,y,z) in 3d cartesian coordinates as [x[1],y[1],z[1],A(x[1],y[1],z[1])], [x[2],y[2],z[2],A(x[2],y[2],z[2])], [x[i],y[i],z[i],A(x[i],y[i],z[i])],etc...where i vary from 1 to 300 (or higher).

How to plot A(x[i],y[i],z[i]) in 3d.

Thanks

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