LA 错题笔记
2018-03-02 本文已影响8人
程序猪小羊
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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
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how the linear transformation works