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clartg.f(3) LAPACK clartg.f(3)clartg.fNAME-Functions/Subroutines subroutine clartg (F, G, CS, SN, R) CLARTG generates a plane rotation with real cosine and complex sine.SYNOPSISFunction/Subroutine Documentation subroutine clartg (complexF, complexG, realCS, complexSN, complexR) CLARTG generates a plane rotation with real cosine and complex sine. Purpose: CLARTG generates a plane rotation so that [ CS SN ] [ F ] [ R ] [ __ ] . [ ] = [ ] where CS**2 + |SN|**2 = 1. [CS ] [ G ] [ 0 ] This is a faster version of the BLAS1 routine CROTG, except for the following differences: F and G are unchanged on return. If G=0, then CS=1 and SN=0. If F=0, then CS=0 and SN is chosen so that R is real. Parameters: F F is COMPLEX The first component of vector to be rotated. G G is COMPLEX The second component of vector to be rotated. CS CS is REAL The cosine of the rotation. SN SN is COMPLEX The sine of the rotation. R R is COMPLEX The nonzero component of the rotated vector. Author: Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Date: September 2012 Further Details: 3-5-96 - Modified with a new algorithm by W. Kahan and J. Demmel This version has a few statements commented out for thread safety (machine parameters are computed on each entry). 10 feb 03, SJH. Definition at line 104 of file clartg.f.-SNAuthorGenerated automatically by Doxygen for LAPACK from the source code.Version 3.4.2Tue Sep 25 2012 clartg.f(3)

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