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man pages->NetBSD man pages -> fmod (3)
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## FMOD(3)

```
```

### NAME[Toc][Back]

```     fmod, fmodf - floating-point remainder function
```

### LIBRARY[Toc][Back]

```     Math Library (libm, -lm)
```

### SYNOPSIS[Toc][Back]

```     #include <math.h>

double
fmod(double x, double y);

float
fmodf(float x, float y);
```

### DESCRIPTION[Toc][Back]

```     The fmod() function computes the floating-point remainder of x/ y.
```

### RETURN VALUES[Toc][Back]

```     The fmod() and fmodf() functions return the value x-i*y, for some integer
i such that, if y is non-zero, the result has the same sign as x and magnitude
less than the magnitude of y.  If y is zero, whether a domain
error occurs or the fmod() function returns zero is implementationdefined.

```

```     math(3)
```

### STANDARDS[Toc][Back]

```     The fmod() function conforms to ANSI X3.159-1989 (``ANSI C'').

BSD                               May 2, 1991                              BSD
```
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