单词	equivalence
释义	equivalence (of matrices) Two m × n matrices M1, M2 are equivalent if there exists an invertible m × m matrix P and an invertible n × n matrix Q such that M1 = PM2Q. If the entries are from a field, then a matrix M is equivalent to where r is the rank of M. See also Smith normal form.
随便看	odd function odd integer odd part odd permutation odds odds ratio ODE off diagonal omega one one-way function one‐sided surface one‐sided test one‐tailed test one‐to‐many one‐to‐one one‐to‐one correspondence only if onto open ball open cover open disc open interval open mapping open mapping theorem

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