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htrh5


Last seen: 10 months ago |  Active since 2015

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How to interpolate PDE solution to cartesian grid
I can plot a solution using pdeplot(p,e,t,'xydata',u) but I want to interpolate my answer to a cartesian grid so that I can do o...

7 years ago | 1 answer | 0

1

answer

Question


chebyshevT is too slow
This function takes an eternity to compute. I have written a workaround that works about 75 times faster for me but I am curious...

8 years ago | 0 answers | 0

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answers

Question


Parameter Optimization in an interval
I have a scoring function asd that takes 4 parameters. Normally this works: [m n]=fminsearch(asd,[40,40,0.04,0.75] , ... ...

8 years ago | 1 answer | 0

1

answer

Question


Surf rotation/size
When I view the surf plot of a 2D data, it looks normal from any single angle but when I start to rotate it, matlab automaticall...

8 years ago | 1 answer | 1

1

answer

Question


Creating 4D vector inside parfor
This is what I have parfor i = 1:N/k tti=-sqrt(N)/2+(i*k-k)/sqrt(N); [ap,~]=meshgrid(tau/2+tti,tau/2); ...

8 years ago | 1 answer | 0

1

answer

Question


Using spline as an interpolating function
ts = linspace(-10,10,1024); fs = func(t); Lets say I do not have access to |func|. Normally I can't use |f| as a functi...

8 years ago | 1 answer | 1

1

answer

Question


parallel for loop in mex
The outer loop in this code should be parallelizable #include "mex.h" #include "matrix.h" #include <math.h> ...

8 years ago | 1 answer | 0

1

answer

Question


Quitting matlab unresponsive due to memory (maybe)
When I try to make matlab deal with, say 16384*16384 matrix (or maybe the function needs to use a few of such matrices in it), m...

8 years ago | 1 answer | 0

1

answer

Question


The variable in parfor cant classified
parpool(3) parfor n = 1:N a=n/60; for u_p=1:length(t) x_a(n,u_p)=sqrt(1-1i*cot(a*pi/2)...

9 years ago | 1 answer | 0

1

answer

Question


Help calling a matlab function in a mex function
EDIT: See my answer below for clarification. I want to modify sincall example to make it display besselj(0,x) #include "...

9 years ago | 1 answer | 0

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answer

Answered
Help calling a matlab function in a mex function
forgot about pointer stuff, oups. This fixed it: rhs[0]=mxCreateDoubleMatrix(1, 1, mxREAL); double* pw=mxGetPr(r...

9 years ago | 0

| accepted

Question


Displaying extra information for datapoints on a plot
Lets say I have two vectors x and y, which describe the position. When I plot them, I want to click on a data point and be able ...

9 years ago | 1 answer | 0

1

answer