-
AB = 0
https://math.stackexchange.com/questions/783593/showing-ab-0-does-not-imply-either-a-b-0-but-that-singular
"No need for a contradiction."
Matrix C is singular,
iff for nonzero x:
Cx = 0. -
closest function
and Fourier series. -
transformation matrix based on a given basis
-
how the linear transformation works
网友评论