RE: CEE4SIFAC Math API

[Joel Fritz <JFritz@xxxxxxxxxxxxxxxx>]

The manual says "Any positive integer X30."  I'm curious what they mean by
that.  If you use  32 bit unsigned integers (10 u 0) for the input and
output parms, you can't have a result greater than 2 ^ 32 (4294967296).  13!
is a bit bigger ( 6227020800). My program gave me an answer of  "13
factorial = 1932053504".  If you subtract 2 ^ 32 from 13!, that's what you
get.  (I'm almost beginning to enjoy the windows calculator applet.)
Integers roll over when you go past the maximum size.  

You could write your own using packed numbers.  Amaze your friends with
recursion in RPG.  <BG>

   
-----Original Message-----
From: Dave Mahadevan [mailto:mahadevan@fuse.net]
Sent: Tuesday, April 13, 1999 3:25 PM
To: midrangel
Subject: CEE4SIFAC Math API


Folks:

The API reference book says I can use this API upto number 30.  The
stuff starts giving me wrong answer from 13 .  Did they mean 13 not 30?
Has anybody used this API?
+-------------------+-------------------+---------+-------------------------
--------------+---------+---------------------------------------¦

¦ Factorial         ¦ CEE4SIFAC         ¦ I       ¦ n! = 1*2*3 ...
(n-1)*n.               ¦ 1       ¦ Any positive integer _30.
¦
+-------------------+-------------------+---------+-------------------------
--------------+---------+---------------------------------------¦



--
Thank You.

Regards

Dave Mahadevan.. mailto:mahadevan@fuse.net


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