Returns the number of elements in a matrix. If the argument is a string, it will return the length of the string.
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Syntax |
Description |
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y = length(x); |
y the number of elements in a matrix. For example, if x is an n by m matrix, y = length( x ) = n * m. |
Example
Find the length of a matrix and of a string.
x=matrix(2,3,3); ?y=length(x); result: 18
?length("hello"); result: 5
See Also