BOOTSTRAP (klibm) functions
LIBRARY ROUTINE
katan - compute the arc tangent of the argument.
LIBRARY CALL
double katan(double x)
INPUT
- x - input argument to take arc tangent of.
OUTPUT
none
RETURN VALUE
the double precision arc tangent of the
input argument.
DESCRIPTION
The katan function computes arc tangent of
the double precison input argument. The result
is an angle with the value between -pi/2 and pi/2
radians.
This is provided in all POSIX and X/OPEN
compliant C math libraries. Currently
katan is simply a macro to atan because
Khoros does not run on any machine whose
math library does not include this function.
If Khoros is ported to a machine without this
function then a replacement will be written.
ADDITIONAL INFORMATION
none
EXAMPLES
none
SIDE EFFECTS
none
RESTRICTIONS
none
MODIFICATION
none
FILES
$BOOTSTRAP/objects/library/klibm/src/klibm.c
SEE ALSO
klibm(3)
COPYRIGHT
Copyright (C) 1993 - 1997, Khoral Research, Inc. ("KRI") All rights reserved.