givens.cc File Reference

#include "defun-dld.h"
#include "error.h"
#include "oct-obj.h"

Include dependency graph for givens.cc:

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Functions

DEFUN_DLD (givens, args, nargout,"-*- texinfo -*-\n\ @deftypefn {Loadable Function} {@var{g} =} givens (@var{x}, @var{y})\n\ @deftypefnx {Loadable Function} {[@var{c}, @var{s}] =} givens (@var{x}, @var{y})\n\ @tex\n\ Return a $2\\times 2$ orthogonal matrix\n\ $$\n\ G = \\left[\\matrix{c & s\\cr -s'& c\\cr}\\right]\n\ $$\n\ such that\n\ $$\n\ G \\left[\\matrix{x\\cr y}\\right] = \\left[\\matrix{\\ast\\cr 0}\\right]\n\ $$\n\ with $x$ and $y$ scalars.\n\ @end tex\n\ @ifnottex\n\ Return a 2 by 2 orthogonal matrix\n\ @code{@var{g} = [@var{c} @var{s}; -@var{s}' @var{c}]} such that\n\ @code{@var{g} [@var{x}; @var{y}] = [*; 0]} with @var{x} and @var{y} scalars.\n\ @end ifnottex\n\ \n\ For example:\n\ \n\ @example\n\ @group\n\ givens (1, 1)\n\ @result{} 0.70711 0.70711\n\ -0.70711 0.70711\n\ @end group\n\ @end example\n\ @end deftypefn")

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Function Documentation

DEFUN_DLD	(	givens	,
		args	,
		nargout
	)

Definition at line 33 of file givens.cc.

References error(), error_state, Givens(), print_usage(), and x.