1 files changed, 23 insertions, 0 deletions
diff --git a/sys/vops/lz/asqrd.x b/sys/vops/lz/asqrd.x
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+++ b/sys/vops/lz/asqrd.x
@@ -0,0 +1,23 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+# ASQR -- Compute the square root of a vector (generic).  If the square root
+# is undefined (x < 0) a user supplied function is called to compute the value.
+
+procedure asqrd (a, b, npix, errfcn)
+
+double	a[ARB], b[ARB]
+int	npix, i
+extern	errfcn()
+double	errfcn()
+errchk	errfcn
+
+begin
+	do i = 1, npix {
+		if (a[i] < 0)
+		    b[i] = errfcn (a[i])
+		else
+		{
+			b[i] = sqrt (a[i])
+		}
+	}
+end