1 files changed, 16 insertions, 0 deletions
diff --git a/sys/gio/aelogd.x b/sys/gio/aelogd.x
new file mode 100644
index 00000000..0a3d3b26
--- /dev/null
+++ b/sys/gio/aelogd.x
@@ -0,0 +1,16 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+# AELOGD -- Inverse of the elogd function.
+
+double procedure aelogd (x)
+
+double	x
+
+begin
+	if (x > 1.0D0)
+	    return (10.0D0 ** x)
+	else if (x >= -1.0D0)
+	    return (x * 10.0D0)
+	else
+	    return (- (10.0D0 ** (-x)))
+end