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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
# AMAG -- Return the magnitude of two vectors.
procedure amag$t (a, b, c, npix)
PIXEL a[ARB], b[ARB], c[ARB]
int npix, i
begin
do i = 1, npix
$if (datatype == sir)
c[i] = sqrt (real(a[i] ** 2) + real(b[i] ** 2))
$else $if (datatype == dl)
c[i] = sqrt (double(a[i] ** 2) + double(b[i] ** 2))
$else
c[i] = sqrt (a[i] ** 2 + b[i] ** 2)
$endif $endif
end
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