On 20 Jun 2011 at 21:00, Tony Duell wrote:
The conventional infix ntoation is silly. The person
who generates the
expresson to evaluate has to add brackets to ensure it's evaulated in
the ordr he wants. And the person evaulating it has to then work out
which operation (in the inntermost brackets) to do first. With RPN the
person genrating the expression simply ptus down the operations in the
order they are to be performed, and th eperson evaulating it just
reads it left-to-rigth and does said operations.
I suppose a calculator with infix entry wouldn't be so bad if it
would store the entire entry until the = key is pressed, then
evaluate it observing rules of operator precedence.
But none AFAIK do, so an infix calculator really isn't.
--Chuck