LAPACK
3.10.0
LAPACK: Linear Algebra PACKage

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Functions/Subroutines  
subroutine  dlaqr1 (N, H, LDH, SR1, SI1, SR2, SI2, V) 
DLAQR1 sets a scalar multiple of the first column of the product of 2by2 or 3by3 matrix H and specified shifts. More...  