LAPACK  3.9.0
LAPACK: Linear Algebra PACKage
Functions/Subroutines
zlangt.f File Reference

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Functions/Subroutines

double precision function zlangt (NORM, N, DL, D, DU)
 ZLANGT returns the value of the 1-norm, Frobenius norm, infinity-norm, or the largest absolute value of any element of a general tridiagonal matrix. More...
 
zlassq
subroutine zlassq(N, X, INCX, SCALE, SUMSQ)
ZLASSQ updates a sum of squares represented in scaled form.
Definition: zlassq.f:108
disnan
logical function disnan(DIN)
DISNAN tests input for NaN.
Definition: disnan.f:61
zlangt
double precision function zlangt(NORM, N, DL, D, DU)
ZLANGT returns the value of the 1-norm, Frobenius norm, infinity-norm, or the largest absolute value ...
Definition: zlangt.f:108
lsame
logical function lsame(CA, CB)
LSAME
Definition: lsame.f:55