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Question
How do I access specific elements from a multi-dimensional array?
Given a milti-dimensional (say 3) array A, I want to access the elements at indices [ ], [] and [ ]. If I define and sim...
6 years ago | 1 answer | 0
1
answerQuestion
How come fsolve fails to find a solution when the problem script returns the Jacobian (but works when no jacobian is returned) ?
I am attempting to solve a system of nonlinear equations. My function script returns the Residual as well as the Jacobian with r...
8 years ago | 0 answers | 0
0
answersHow to suppress errors in matrix algebra involving very large matrices ?
Just for the sake of documenting, I actually found a way to make this work. Matlab has vpa (variable precision arithmetic), usin...
8 years ago | 0
Question
How do I use fft2 to compute the spatial frequency and temporal frequency for a 1D travelling wave?
I have 2 dimensional data for a travelling wave u(x,t) known over the rectangular domain [x,t]= [x1, x2] and [0, t2]. I want...
8 years ago | 0 answers | 0
0
answersQuestion
Why are the random numbers obtained by different invocations to LOGRND() the same?
I used the LOGRND()[https://www.mathworks.com/help/stats/lognrnd.html] funtion to conduct a Monte Carlo Experiment. I used to tw...
9 years ago | 1 answer | 1
1
answerQuestion
How to suppress errors in matrix algebra involving very large matrices ?
I have two very large matrices, A and B which constitute an equation A* x + B* y =0 I am interested in solving for x (de...
9 years ago | 2 answers | 0
2
answersQuestion
What is an alternative method(apart from 'Maxstep') to ensure ode45 does not take large time steps and ignore high frequency components in the forcing function?
I am working on the response of vibrational energy harvesters to a very abrupt forcing function with many high-frequency compone...
9 years ago | 2 answers | 0
