Matthew Kehoe
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Awarded to Matthew Kehoe on 29 Jul 2021
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Question
Change the hot colormap so that the default value of 1 is white
Inside my Matlab code I am using the hot colormap in order to produce plots of the calculated reflectivity. Example 1: Subset o...
5 Monate ago | 2 answers | 0
2
answersQuestion
Applying vectorization techniques to speedup the performance of dividing a 3D matrix by a 2D matrix
I'm working on removing a for loop in my Matlab code to improve performance. My original code has one for loop (from j=1:Nx) tha...
6 Monate ago | 3 answers | 0
3
answersQuestion
Efficient way to multiply a vector of size (Nx,1) with a matrix of size (Nx+1,Nx+1)
My code repeatedly computes a vector of size (Nx,1) by a matrix of size (Nx+1,Nx+1): clc; clear all; Nx = 32; a = 1.5; b = 2...
6 Monate ago | 1 answer | 0
1
answerQuestion
Improving the performance of matrix multiplication and division with nested for loops
My Matlab code has a section of code which repeatedly performs matrix multiplication and division (through the backslash operato...
6 Monate ago | 1 answer | 0
1
answerQuestion
How to store and reuse coefficients in a for loop
My Matlab code has a subroutine that repeatedly executes a double for loop. While testing large simulations, this subroutine is ...
6 Monate ago | 2 answers | 0
2
answersQuestion
Improve the speed of nested for loops through vectorization or similar methods
My Matlab code has a function that is called 10^3 - 10^7 times. I'm curious if I can improve the speed of the function through v...
6 Monate ago | 1 answer | 0
1
answerQuestion
Improving the speed of a double for loop through vectorization or changing summation indices
I'm writing a double for loop that computes a Pade summation subject to specific coefficients and parameters. I'm curious if the...
6 Monate ago | 1 answer | 0
1
answerQuestion
Suggestions for vectorizing double/triple for loops in Matlab
My Matlab code has multiple double/triple for loops which I believe cause a bottleneck when the index summation variables reach ...
6 Monate ago | 1 answer | 0
1
answerQuestion
How to implement polyval in more than one dimension when the summation includes complex coefficients
My problem involves the following double summation where are complex coefficients, and are positive constants. I think that...
fast 2 Jahre ago | 1 answer | 0
