BOOTSTRAP (klibm) functions


LIBRARY ROUTINE

ksign - evaluate sign function.

LIBRARY CALL

double ksign (
   double x)

INPUT

OUTPUT

none

RETURN VALUE

-1 if the input argument is negative, 0 if the input argument is 0, and 1 if the input argument is positive

DESCRIPTION

The ksign function evaluates the sign function at the value of the double precision input argument. The result is -1 if the argument is negative, 0 if the argument is 0, and 1 if the argument is positive.

ADDITIONAL INFORMATION

none

EXAMPLES

none

SIDE EFFECTS

none

RESTRICTIONS

none

MODIFICATION

Converted from vsign() in Khoros 1.0 (JW)

FILES

$BOOTSTRAP/objects/library/klibm/src/extensions.c

SEE ALSO

klibm(3)

COPYRIGHT

Copyright (C) 1993 - 1997, Khoral Research, Inc. ("KRI") All rights reserved.