# Mohammadfarid ghasemi

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Question

latex output to .txt format

Hi, I transfered some equations into latex and want to save the output as .txt format, can anyone tell me how can I do it? ...

3 months ago | 1 answer | 0

### 1

answerSolved

Find the sum of all the numbers of the input vector

Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

10 months ago

Solved

Times 2 - START HERE

Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

10 months ago

Question

Spectral analysis of 1D elastic wave

As indicated in the: "wave propagation in structures: an FFT-based spectral analysis methodology", by James F. Doyle: The spec...

2 years ago | 0 answers | 0

### 0

answersQuestion

how to install regtools package

I have downloaded the regtools package, but it contains so many m.files. Should I run and save every code separately? Is there a...

4 years ago | 1 answer | 0

### 1

answerQuestion

quiver in cylindrical coordinates

Hi, I computed cosine directions for vector S as (Lx,Ly,Lz). Where S is a 10*360 array defined on a ring, including two circl...

4 years ago | 0 answers | 0

### 0

answersQuestion

system of equations with nonlinear constraint

Hi, I have a system of three linear equations and three unknowns as below: x(1).*(A11-B)+x(2).*A12+x(3).*A13=0 x(1).*A1...

4 years ago | 1 answer | 0

### 1

answerQuestion

solve 3d equilibrium equation of stress in cylindrical coordinate

Hi, Does anybody have any idea how to solve 3D equilibrium equation of stress in cylindrical coordinates?

4 years ago | 0 answers | 0

### 0

answersQuestion

numerical integration with dependent variables

Hi, I have a function F(r,t) which is estimated by evalutation of integral of a second function g(s,r,t) with s=[0,inf]. I d...

4 years ago | 1 answer | 0

### 1

answerQuestion

diffusion equation in matlab

Hi, I have a pressure diffusion equation on a quadratic boundary. I have write the following code to solve it, the pressure sho...

6 years ago | 0 answers | 0

### 0

answersQuestion

nonlinear time dependent PDE

Does anybody know how to solve the following nonlinear time dependent PDE? Du/Dt+(u*Du/Dx)^2+(u^3)*D^2(u)/Dx^2+u^3; ...

7 years ago | 1 answer | 0