math_ops.h File Reference

Contains macros for common mathematical functions. More...

#include <math.h>

Go to the source code of this file.

Macros
#define	min(a, b)   ((a)<(b)?(a):(b))
#define	max(a, b)   ((a)>(b)?(a):(b))
#define	min3(a, b, c)   min(min((a),(b)),min((b),(c)))
#define	max3(a, b, c)   max(max((a),(b)),max((b),(c)))
#define	absolute(a)   ((a)<0?-(a):(a))
#define	raiseto(x, a)   (exp((a)*log(x)))
#define	raiseto_int(y, x, a)
#define	sign(a)   ((a)<0?-1.0:1.0)

Detailed Description

Contains macros for common mathematical functions.

Author

Debojyoti Ghosh

Definition in file math_ops.h.

Macro Definition Documentation

min

#define min	(		a,
			b
	)		((a)<(b)?(a):(b))

Minimum of two numbers

Definition at line 14 of file math_ops.h.

max

#define max	(		a,
			b
	)		((a)>(b)?(a):(b))

Maximum of two numbers

Definition at line 18 of file math_ops.h.

min3

#define min3	(		a,
			b,
			c
	)		min(min((a),(b)),min((b),(c)))

Minimum of three numbers

Definition at line 23 of file math_ops.h.

max3

#define max3	(		a,
			b,
			c
	)		max(max((a),(b)),max((b),(c)))

Maximum of three numbers

Definition at line 27 of file math_ops.h.

absolute

#define absolute

(

a

)

((a)<0?-(a):(a))

Absolute value

Definition at line 32 of file math_ops.h.

raiseto

#define raiseto	(		x,
			a
	)		(exp((a)*log(x)))

Raise to a power: y = x^a

Definition at line 37 of file math_ops.h.

raiseto_int

#define raiseto_int	(		y,
			x,
			a
	)

Value:

{ \
    int arraycounter; \
    y = x; \
    for (arraycounter=1; arraycounter<a; arraycounter++) { \
      y *= x; \
    } \
  }

Raise to a power (int only): y = x^a

Definition at line 42 of file math_ops.h.

sign

#define sign

(

a

)

((a)<0?-1.0:1.0)

Returns the sign of the argument

Definition at line 54 of file math_ops.h.