matrix addition and calculating the average of it

how to add the three matrix and get the average of it A=rand(4*4) B=rand(4*4) C=rand(4*4)

[Stephen23]

Duplicate:

https://www.mathworks.com/matlabcentral/answers/371447-matrix-calculation-to-find-the-average-value

Answer 1

[Benjamin Kraus]

You can add three matrices using the + operator, which will do element-by-element addition:

D = A+B+C;

If you want to get the mean/average, you can divide the sum by 3:

M = D./3;

Note: In this case, you are dividing by a scalar (3), so ./ and / will do the same thing. If you were dividing by a matrix you would need to make sure to use the correct division operator.

[Prabha Kumaresan]

thanks for your comment.but if i want to add m number of matrix instead of 3 then how i do that.Also for calculating mean i want to add the numbers in first column together and then divide by 3.so it results in (1*3) matrix.

[Stephen23]

"...but if i want to add m number of matrix instead of 3 then how i do that"

Read this to know why that would be a really bad way to write code:

https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

Put all of the matrices into one array (ND numeric or cell) and then your task is trivial.