expx2.c File Reference

#include <math.h>
#include "include/expx2.h"
#include "include/normaldistr.h"
#include "include/runs_test.h"

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Defines
#define	M   128.0
#define	MINV   .0078125
#define	_INFINITY   1.0E20
Functions
double	expx2 (double x, int sign)

---

Define Documentation

#define _INFINITY   1.0E20

Definition at line 60 of file expx2.c.

Referenced by expx2().

#define M   128.0

Definition at line 57 of file expx2.c.

Referenced by _simplexGenNew(), expx2(), nnlsWght(), nnlsWghtSquared(), qr_decomp(), qr_solve(), qr_weight(), and read_matrix().

#define MINV   .0078125

Definition at line 58 of file expx2.c.

Referenced by expx2().

---

Function Documentation

double expx2	(	double	x,
		int	sign
	)

Function for calculating exponential of squared argument.

Returns:

Returns exp(x^2).

Parameters:

x	Function for calculating exponential of squared argument.

Returns:

Returns exp(x^2). variable x

Parameters:

sign	Function for calculating exponential of squared argument.

Returns:

Returns exp(x^2). sign (-1 or 1) of squared argument x*x

Definition at line 67 of file expx2.c.

References _INFINITY, M, MAXLOG, and MINV.

Referenced by cephes_erfc(), ndtr(), and test_expx2().