Multiply a cell array with a scalar

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Patrik Ek
Patrik Ek on 10 Feb 2014
Edited: swenia on 4 Feb 2020
Hi, I have a cell array that contain a number of different sized matrices. I need to multiply each of these cell elements, where the number of cells is not constant, with a single scalar value. Does anyone know how to do this? It does not work with the standard call of cellfun since the cells are of different size,
The reason is that I use matlab as an interface to create stuff to another program and I depending on what item I create I need to use different tones on the colormaps.

Accepted Answer

Azzi Abdelmalek
Azzi Abdelmalek on 10 Feb 2014
Edited: Azzi Abdelmalek on 10 Feb 2014
a={[1 2 3],[2 5;6 8], [2 5 8 7]}
cellfun(@(x) x*yournumber,a,'un',0)
swenia on 4 Feb 2020
This is very helpful, thanks. Follow-up question: what if I'd like to multiply each cell element with a different number stored in a vector?
For instance:
a = {[1 2; 3 4], [5 6; 7 8]}
b = [0;1]
I'd like to multiply a and b such that the result will be:
ans = {[0 0; 0 0], [5 6; 7 8]}

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