# matlab

### MATLAB Finite difference numerical integration or ode45?

I'm trying to numerically solve the time dependent Schrödinger equation and I've been told that the best approach is to numerically integrate...
Thread by: Frank Castle, May 17, 2016, 9 replies, in forum: MATLAB, Maple, Mathematica, LaTeX, Etc

### Nuclear Reactor Simple 1D Method of Characteristics Solver

1. The problem statement, all variables and given/known data Hi all, attempting to make a Method of Characteristics solver in Matlab. I'm...
Thread by: ChasingNeutrons, May 17, 2016, 1 replies, in forum: Engineering and Computer Science Homework

### MATLAB How to set zero value boxes transparent in 3D plots?

I used a function called ind2patch to make a big 3D block which contains a number of smaller blocks in 3 dimensions. Each small block has a value...
Thread by: kelvin490, May 17, 2016, 1 replies, in forum: MATLAB, Maple, Mathematica, LaTeX, Etc

### Mathematica Numerical vs. Monte-Carlo Simulations

I have an integration that doesn't have a solution in the table of integrals. So, I evaluated it using Mathematica using the command NIntegrate....
Thread by: EngWiPy, May 2, 2016, 58 replies, in forum: MATLAB, Maple, Mathematica, LaTeX, Etc

### MATLAB Bisection method and numerical integration

In Matlab I am trying to use the composite Simpson's rule to find $x_l$ so that 170=\int^{x_l}_0 \sqrt{1+(y')^2} dx = \int^{x_l}_0...
Thread by: roam, Apr 14, 2016, 2 replies, in forum: MATLAB, Maple, Mathematica, LaTeX, Etc

### MATLAB Replace NaN with next element in Multidimensional Array

I have a a multidimensional array (49x49x49) which has NaN values scattered randomly. For each NaN, I want to replace the value with the previous...
Thread by: Ben Wilson, Apr 6, 2016, 10 replies, in forum: MATLAB, Maple, Mathematica, LaTeX, Etc

### MATLAB Pdepe solver for diffusion equation in a packed column

Consider I have a packed column of length L filled with known characteristic adsorbent. I am putting a mixture of N components in it and I am...
Thread by: SimOpera, Mar 30, 2016, 2 replies, in forum: MATLAB, Maple, Mathematica, LaTeX, Etc

### MATLAB Matlab syntax for 2-d fourier transform

I have a function f(x,y) which i have defined in this way: a vector x and a vector y meshgrid[x,y] z= f(meshgrid[x,y]). how do i do a 2-d...
Thread by: Ben Wilson, Mar 21, 2016, 9 replies, in forum: MATLAB, Maple, Mathematica, LaTeX, Etc