LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
dlantr.f File Reference

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double precision function dlantr (NORM, UPLO, DIAG, M, N, A, LDA, WORK)
 DLANTR returns the value of the 1-norm, or the Frobenius norm, or the infinity norm, or the element of largest absolute value of a trapezoidal or triangular matrix. More...