Linux and UNIX Man Pages

Test Your Knowledge in Computers #467
Difficulty: Easy
In computer networking, telecommunication and information theory, broadcasting is a method of transferring a message to all recipients using reverse polish notation.
True or False?

remainderl(3) [posix man page]

```REMAINDER(P)						     POSIX Programmer's Manual						      REMAINDER(P)

NAME
remainder, remainderf, remainderl - remainder function

SYNOPSIS
#include <math.h>

double remainder(double x, double y);
float remainderf(float x, float y);
long double remainderl(long double x, long double y);

DESCRIPTION
These  functions shall return the floating-point remainder r= x- ny when y is non-zero. The value n is the integral value nearest the exact
value x/ y.  When |n-x/y|=0.5, the value n is chosen to be even.

The behavior of remainder() shall be independent of the rounding mode.

RETURN VALUE
Upon successful completion, these functions shall return the floating-point remainder r= x- ny when y is non-zero.

If x or y is NaN, a NaN shall be returned.

If x is infinite or y is 0 and the other is non-NaN, a domain error shall occur, and either a NaN (if  supported),  or  an  implementation-
defined value shall be returned.

ERRORS
These functions shall fail if:

Domain Error
The x argument is +-Inf, or the y argument is +-0 and the other argument is non-NaN.

If  the	integer  expression  (math_errhandling	&  MATH_ERRNO)	is  non-zero, then errno shall be set to [EDOM]. If the integer expression
(math_errhandling & MATH_ERREXCEPT) is non-zero, then the invalid floating-point exception shall be raised.

The following sections are informative.

EXAMPLES
None.

APPLICATION USAGE
On error, the expressions (math_errhandling & MATH_ERRNO) and (math_errhandling & MATH_ERREXCEPT) are independent of  each  other,  but	at
least one of them must be non-zero.

RATIONALE
None.

FUTURE DIRECTIONS
None.

abs() , div() , feclearexcept() , fetestexcept() , ldiv() , the Base Definitions volume of IEEE Std 1003.1-2001, Section 4.18, Treatment of
Error Conditions for Mathematical Functions, <math.h>

Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and  the  original  IEEE
and  The  Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained
online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group						       2003							      REMAINDER(P)```

Check Out this Related Man Page

```REMAINDER(3P)						     POSIX Programmer's Manual						     REMAINDER(3P)

PROLOG
This  manual page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (consult the correspond-
ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

NAME
remainder, remainderf, remainderl - remainder function

SYNOPSIS
#include <math.h>

double remainder(double x, double y);
float remainderf(float x, float y);
long double remainderl(long double x, long double y);

DESCRIPTION
These functions shall return the floating-point remainder r= x- ny when y is non-zero. The value n is the integral value nearest the  exact
value x/ y.  When |n-x/y|=0.5, the value n is chosen to be even.

The behavior of remainder() shall be independent of the rounding mode.

RETURN VALUE
Upon successful completion, these functions shall return the floating-point remainder r= x- ny when y is non-zero.

If x or y is NaN, a NaN shall be returned.

If  x  is  infinite  or y is 0 and the other is non-NaN, a domain error shall occur, and either a NaN (if supported), or an implementation-
defined value shall be returned.

ERRORS
These functions shall fail if:

Domain Error
The x argument is +-Inf, or the y argument is +-0 and the other argument is non-NaN.

If the integer expression (math_errhandling & MATH_ERRNO) is non-zero, then errno shall	be  set  to  [EDOM].  If  the  integer	expression
(math_errhandling & MATH_ERREXCEPT) is non-zero, then the invalid floating-point exception shall be raised.

The following sections are informative.

EXAMPLES
None.

APPLICATION USAGE
On  error,  the	expressions  (math_errhandling & MATH_ERRNO) and (math_errhandling & MATH_ERREXCEPT) are independent of each other, but at
least one of them must be non-zero.

RATIONALE
None.

FUTURE DIRECTIONS
None.