rant-import(1) [debian man page]

rant-import(1)							    rant-import 						    rant-import(1)

NAME

       Rant - Flexible, Ruby based make

SYNOPSIS

       The  rant-import  command creates a monolithic rant script tailored to the needs of your project and thus removes the dependency on an Rant
       installation (but of course one person needs an Rant installation to run rant-import).

       Run the command with the --help option to get a brief help message:

	   % rant-import --help

       Probably the easiest way to create your monolithic rant script is with the --auto option:

	   % rant-import --auto ant

       This will write a monolithic rant script to the file ant in the current directory. To determine which plugins and imports your  project	is
       using,  it  performs step 2 of the rant command as described in doc/rant.rdoc, which means that it loads the Rantfile in the current direc-
       tory.

       That one command should be enough:

	   % ruby ant

       This script has the same behaviour as the rant command. Distribute it with your project and nobody else but you needs an Rant installation.

FURTHER INFORMATION

       For more information on Rant see: <http://make.rubyforge.org/>

       <http://make.rubyforge.org/files/doc/rant-import_rdoc.html>

AUTHOR

       Rant is by Stefan Lang

       This package is maintained by Ralph Amissah

SEE

       rant(1)

version 0.5.6							   July 26, 2006						    rant-import(1)

ATAN2(3)						     Linux Programmer's Manual							  ATAN2(3)

NAME

       atan2, atan2f, atan2l - arc tangent function of two variables

SYNOPSIS

       #include <math.h>

       double atan2(double y, double x);
       float atan2f(float y, float x);
       long double atan2l(long double y, long double x);

       Link with -lm.

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       atan2f(), atan2l(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE; or cc -std=c99

DESCRIPTION

       The  atan2() function calculates the principal value of the arc tangent of y/x, using the signs of the two arguments to determine the quad-
       rant of the result.

RETURN VALUE

       On success, these functions return the principal value of the arc tangent of y/x in radians; the return value is in the range [-pi, pi].

       If y is +0 (-0) and x is less than 0, +pi (-pi) is returned.

       If y is +0 (-0) and x is greater than 0, +0 (-0) is returned.

       If y is less than 0 and x is +0 or -0, -pi/2 is returned.

       If y is greater than 0 and x is +0 or -0, pi/2 is returned.

       If either x or y is NaN, a NaN is returned.

       If y is +0 (-0) and x is -0, +pi (-pi) is returned.

       If y is +0 (-0) and x is +0, +0 (-0) is returned.

       If y is a finite value greater (less) than 0, and x is negative infinity, +pi (-pi) is returned.

       If y is a finite value greater (less) than 0, and x is positive infinity, +0 (-0) is returned.

       If y is positive infinity (negative infinity), and x is finite, pi/2 (-pi/2) is returned.

       If y is positive infinity (negative infinity) and x is negative infinity, +3*pi/4 (-3*pi/4) is returned.

       If y is positive infinity (negative infinity) and x is positive infinity, +pi/4 (-pi/4) is returned.

ERRORS

       No errors occur.

CONFORMING TO

       C99, POSIX.1-2001.  The variant returning double also conforms to SVr4, 4.3BSD, C89.

SEE ALSO

       acos(3), asin(3), atan(3), carg(3), cos(3), sin(3), tan(3)

COLOPHON

       This page is part of release 3.25 of the Linux man-pages project.  A description of the project, and information about reporting bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

								    2008-11-20								  ATAN2(3)