how to delete all the elements from the matrix?

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Roma
Roma 2014-3-27
回答： Jos (10584) 2014-3-27
i want to delete all the elements from the matrix, and make the matrix empty.

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回答（3 个）

Chandrasekhar
Chandrasekhar 2014-3-27
a = [1 2;3 4]
to make this matrix empty.then
a = [];
RAGHAVENDRA
RAGHAVENDRA 2014-3-27
编辑：RAGHAVENDRA 2014-3-27
Are you trying to make the matrix as null matrix or want to replace the elements with zeros(erasing the values). In the former case just use A=[];
Jos (10584)
Jos (10584) 2014-3-27
Several options, depending on the desired result (same class, for instance):
A = []
A(:) = []
A = zeros(0,0,class(A))

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