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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+# ASSQ -- Vector sum of squares.
+
+$if (datatype == csir)
+real procedure assq$t (a, npix)
+real sum
+$else $if (datatype == ld)
+double procedure assq$t (a, npix)
+double sum
+$else
+PIXEL procedure assq$t (a, npix)
+PIXEL sum
+$endif $endif
+
+PIXEL a[ARB]
+int npix
+int i
+
+begin
+ sum = 0$f
+ do i = 1, npix
+ sum = sum + (a[i] ** 2)
+
+ return (sum)
+end