eye and speye in Kron within matlab

1 次查看（过去 30 天）

ektor 2020-6-1

Dear all,

I want to ask if

B=[1 2; 3 4];
A=kron(eye(2),B);

and

B=[1 2; 3 4];
A=kron(speye(2),B);

are the same.

It seems that the latter is way faster than the former.

MATLAB

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