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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
# ALTR -- Linearly map a vector into another vector of the same datatype.
# This is the most general form. See also ALTA and ALTM.
# b[i] = (a[i] + k1) * k2 + k3
procedure altrl (a, b, npix, k1, k2, k3)
long a[ARB], b[ARB]
double k1, k2, k3
int npix, i
begin
do i = 1, npix
b[i] = (a[i] + k1) * k2 + k3
end
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