Igor Schein on Mon, 30 Sep 2002 09:54:34 -0400


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Re: apparent sigma() problem


On Mon, Sep 30, 2002 at 03:42:46PM +0200, Bill Allombert wrote:
> On Sun, Sep 29, 2002 at 11:52:55PM -0400, Igor Schein wrote:
> > Hi,
> > 
> > ? sigma(2,-1)
> > 6
> > 
> > doesn't make sense.  There's nothing in the manual that prevents 2nd
> > argument from being negative, so I'd expect the answer to be 3/2.
> Both you and the manual are correct, only the code is at fault:
> 
> ? sigma(2,-1)
> %1 = 6 /*wrong*/
> ? sigma(2,-2)
> %2 = 5/4 /*correct*/

What version are you running?  I tried 2.1.4 and CVS, and in both
sigma(-2,2) returns 5. 

Thanks

Igor