NAME

abs, iabs, dabs, cabs, zabs, cdabs, jiabs, iiabs − Fortran absolute value

SYNOPSIS

integer i1, i2
integer∗2 j1, j2
real r1, r2
double precision dp1, dp2
complex cx1
double complex dx1

r2 = abs(r1)

i2 = abs(i1)
i2 = iabs(i1)
i2 = jiabs(i1)

j2 = abs(j1)
j2 = iabs(j1)
j2 = iiabs(j1)

dp2 = abs(dp1)
dp2 = dabs(dp1)

r1 = abs(cx1)
r1 = cabs(cx1)

dp1 = abs(dx1)
dp1 = zabs(dx1)
dp1 = cdabs(dx1)

DESCRIPTION

abs is the family of absolute value functions.  iabs returns the integer absolute value of its integer argument.  dabs returns the double-precision absolute value of its double-precision argument.  cabs returns the complex absolute value of its complex argument.  zabs and cdabs return the double-precision absolute value of their double-complex argument.  The generic form abs returns the type of its argument, except for complex arguments, in which case it returns the real type corresponding in precision to its argument. 

The functions jiabs, iiabs, and cdabs have been included to provide compatibility with other vendors and are not recommended for general use. 

SEE ALSO

floor(3F), floor(3M). 

CX/UX Hf77 Fortran Reference Manual