From 40e5a5811c6ffce9b0974e93cdd927cbcf60c157 Mon Sep 17 00:00:00 2001
From: Joe Hunkeler <jhunkeler@gmail.com>
Date: Tue, 11 Aug 2015 16:51:37 -0400
Subject: Repatch (from linux) of OSX IRAF

---
 math/iminterp/doc/asigrl.hlp | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 math/iminterp/doc/asigrl.hlp

(limited to 'math/iminterp/doc/asigrl.hlp')

diff --git a/math/iminterp/doc/asigrl.hlp b/math/iminterp/doc/asigrl.hlp
new file mode 100644
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--- /dev/null
+++ b/math/iminterp/doc/asigrl.hlp
@@ -0,0 +1,40 @@
+.help asigrl Dec98 "Image Interpolator Package"
+.ih
+NAME
+asigrl -- integrate interpolant from a to b
+.ih
+SYNOPSIS
+integral = asigrl (asi, a, b)
+
+.nf
+    pointer	asi	#I interpolant descriptor
+    real	a	#I lower limit for integral, 1 <= a <= npix
+    real	b	#I upper limit for integral, 1 <= b <= npix
+.fi
+.ih
+ARGUMENTS
+.ls asi  
+Pointer to the sequential interpolant descriptor structure.
+.le
+.ls a
+Lower limit to the integral, where 1 <= a <= npix.
+.le
+.ls b
+Upper limit to the integral, where 1 <= b <= npix.
+.le
+.ih
+DESCRIPTION
+The integral is calculated assuming that the interior polynomial, sinc, and
+drizzle interpolants are stored as the data points, and that the spline
+interpolant is stored as an array of B-spline coefficients.
+
+The integral of the sinc interpolant is computed by dividing the integration
+interval into a number of equal size subintervals which are at most one pixel
+wide. The integral of each subinterval is the central value times the interval
+width. The look-up table sinc interpolant is not supported and defaults to
+the sinc interpolant.
+.ih
+NOTES
+ASIINIT or ASISINIT and ASIFIT must be called before using ASIGRL.
+.ih
+SEE ALSO
-- 
cgit 

