laev2.hpp File Reference

#include "tlapack/base/utils.hpp"

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Functions
template<TLAPACK_SCALAR T>
void	tlapack::laev2 (T a, T b, T c, T &s1, T &s2, T &cs, T &sn)
	Computes the eigenvalues and eigenvector of a real symmetric 2x2 matrix A [ a b ] [ b c ] On exit, the decomposition satisfies: [ cs sn ] [ a b ] [ cs -sn ] = [ s1 0 ] [ -sn cs ] [ b c ] [ sn cs ] [ 0 s2 ] where cs*cs + sn*sn = 1.

Detailed Description

Author

Thijs Steel, KU Leuven, Belgium