cyril

MathWorks MOOC Program

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How can I get elegantly an upper triangle random matrix (0 elsewhere)?
I have seen the triu and tril functions, but I can't use them to set to 0: A = rand(4); tril(A)=0; % won't work any i...

11 years 前 | 1 个回答 | 0

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Simple calculations giving high imprecisions
I'm doing the following simple code, that aims to find a point position knowing distances in 2D but the outputs is far from t...

11 years 前 | 1 个回答 | 0

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gaussian kernel smoothing, how to optimize parameter sigma?
Hi, my question is how to find an optimal standard deviation for the gaussian kernel filter smoothing? too large, we are lo...

11 years 前 | 1 个回答 | 0

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Does matlab have matrix broadasting
This x=[1:3]'; x.^(1:5) would work on Octave thanks to <https://www.gnu.org/software/octave/doc/interpreter/Broadcastin...

11 years 前 | 1 个回答 | 0

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A logical indexing for row-wise max
I'm wondering if there is anything simpler than: x = [2 3;3 1] [a,b]=max(x, [], 2); % now return the matrix containin...

11 years 前 | 1 个回答 | 0

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Defining function handles in MATLAB
> f = @(x) 2*x^3+7*x^2+x; > f(0) 0 surprising no one mentioned anonymous functions...

11 years 前 | 3