LAPACK
3.10.1
LAPACK: Linear Algebra PACKage

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Functions/Subroutines  
subroutine  claqr1 (N, H, LDH, S1, S2, V) 
CLAQR1 sets a scalar multiple of the first column of the product of 2by2 or 3by3 matrix H and specified shifts. More...  