## 1511 Reputation

8 years, 337 days

## Riemann Zeta function - Problems with P...

Maple 2015

Hi all,

I have been trying to plot Riemann Zeta Function on certain range, but it takes a lot of time(several minutes ,maybe hours).These are the basic things.

How to speed up ploting Zeta?

The same problem with Optimization.

Zeta-Problems.mw

Mathematica don't have this such problems.

Mathematica ploting Zeta with 0.125 second and optimizing 3.42 second.Maple few hours maybe......

## PDE - bending of thin plate...

Maple

Hi everyone.

I'm trying to solve the following PDE

but I'm getting this error:

Error, (in pdsolve/numeric/process_IBCs) initial/boundary conditions can only contain derivatives which are normal to the boundary, got (D[1, 1](w))(x, 0)

The PDE represents the bending of a thin plate.

See File:

PDE-Problem.mw

## Dsolve with parameter...

Maple 2015

Hi every body.

I want to solve a differential equation:

ode=D(r(θ),θ).....

I have the initial conditions:

e=10^(-20)

r(e)=A where A is parameter.
r'(e)=0

sol:=dsolve({ode,r(e)=A,D(r)(e)=0},parameter=[A],numeric)

and:

All in the file.

#@#

Ode-Problem.mw

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