dcomplex.c File Reference

Common arithmetic for complex type. More...

#include <math.h>
#include <stdlib.h>
#include <stdio.h>
#include "slu_dcomplex.h"

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Functions
void	z_div (doublecomplex *c, doublecomplex *a, doublecomplex *b)
	Complex Division c = a/b. More...
double	z_abs (doublecomplex *z)
	Returns sqrt(z.r^2 + z.i^2) More...
double	z_abs1 (doublecomplex *z)
	Approximates the abs. Returns abs(z.r) + abs(z.i) More...
void	z_exp (doublecomplex *r, doublecomplex *z)
	Return the exponentiation. More...
void	d_cnjg (doublecomplex *r, doublecomplex *z)
	Return the complex conjugate. More...
double	d_imag (doublecomplex *z)
	Return the imaginary part. More...
doublecomplex	z_sgn (doublecomplex *z)
	SIGN functions for complex number. Returns z/abs(z) More...
doublecomplex	z_sqrt (doublecomplex *z)
	Square-root of a complex number. More...

Detailed Description

Copyright (c) 2003, The Regents of the University of California, through Lawrence Berkeley National Laboratory (subject to receipt of any required approvals from U.S. Dept. of Energy)

All rights reserved.

The source code is distributed under BSD license, see the file License.txt at the top-level directory.

– SuperLU routine (version 2.0) –
Univ. of California Berkeley, Xerox Palo Alto Research Center,
and Lawrence Berkeley National Lab.
November 15, 1997

This file defines common arithmetic operations for complex type.

Function Documentation

void d_cnjg	(	doublecomplex *	r,
		doublecomplex *	z
	)

double d_imag

(

doublecomplex *

z

)

double z_abs

(

doublecomplex *

z

)

double z_abs1

(

doublecomplex *

z

)

void z_div	(	doublecomplex *	c,
		doublecomplex *	a,
		doublecomplex *	b
	)

void z_exp	(	doublecomplex *	r,
		doublecomplex *	z
	)

doublecomplex z_sgn

(

doublecomplex *

z

)

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doublecomplex z_sqrt

(

doublecomplex *

z

)