Suppose I specify a matrix A like
A = [1 2 3; 4 5 6; 7 8 9]
how can I query A (without using length(A)) to find out it has 3 columns?
Suppose I specify a matrix A like A = [1 2 3; 4 5
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Suppose I specify a matrix A like
A = [1 2 3; 4 5 6; 7 8 9]
how can I query A (without using length(A)) to find out it has 3 columns?
Use the
size()function.The second argument specifies the dimension of which number of elements are required which will be ‘2’ if you want the number of columns.
Official documentation.