[OT] -10^2

Jan Schenkel janschenkel at yahoo.com
Fri May 23 09:59:00 CDT 2003


--- Geoff Canyon <gcanyon at inspiredlogic.com> wrote:
>
> On Friday, May 23, 2003, at 12:40  AM, Jan Schenkel
> wrote:
> 
> > So in this case, after all the firsty three bits
> are
> > interpreted, there's only a single operand left on
> the
> > stack for the minus, so it acts as the unary
> operator.
>
> I was assuming there were other values on the stack
> beneath the given 
> expression. In other words how would you make the -
> negate the 10^2 
> portion of this instead of subtracting 5 from it?
> 
> 5 10  2  ^  -  *
> 
> What I want is this:
> 
> (-(10^2))*5
> 
> 
> regards,
> 
> Geoff Canyon
> 

Ah, the joys of RPN and programming one's HP
calculator -- wonderful aye, Miscdas :-)

In this case, you would have to put the 5 between the
minus and the multiply

10  2   ^  -   5   *

Or you could sneak in a zero and make the minus a
binary operator :

5   0   10  2   ^   -   *

Hope this helped,

Jan Schenkel.

=====
"As we grow older, we grow both wiser and more foolish at the same time."  (La Rochefoucauld)

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