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Linear algebra

  

Definition296

Definition298

The length of a vector is tex2html_wrap_inline521 . Orthogonal vectors of unit length are called orthonormal. . If tex2html_wrap_inline523 are the orthonormal vectors and tex2html_wrap_inline525 is in their linear span, then the coefficients in the expansion tex2html_wrap_inline527 are given by tex2html_wrap_inline529 .

Example303


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