Zilog ZUSBOPTS Manual do Utilizador descarregar pdf (Página 444)

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101

Standard Functions UM017105-0511

416

Zilog Developer Studio II – ZNEO™

User Manual

fabs, fabsf

Computes the absolute value of a floating-point number x.

Synopsis

#include <math.h>

double fabs(double x);

float fabsf(float x);

Returns

The absolute value of x.

Example

double y=6.23;

double x;

x=fabs(y);

floor, floorf

Computes the largest integer not greater than x.

Synopsis

#include <math.h>

double floor(double x);

float floorf(float x);

Returns

The largest integer not greater than x, expressed as a double for floor and expressed as

float for floorf.

Example

double y=6.23;

double x;

x=floor(y);

fmod, fmodf

Computes the floating-point remainder of x/y. If the quotient of x/y cannot be represented,

the behavior is undefined.

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