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# cyril

### MathWorks MOOC Program

6 total contributions since 2014

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Question

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...

nästan 7 år ago | 1 answer | 0

### 1

Question

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...

nästan 7 år ago | 1 answer | 0

### 1

Question

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...

ungefär 7 år ago | 1 answer | 0

### 1

Question

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

ungefär 7 år ago | 1 answer | 0

### 1

Question

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...

ungefär 7 år ago | 1 answer | 0