Brain Burp Rounding??
Harold M Hallikainen email (remove spam text)
Good o' RPN calculators! I still have my HP35 from 1972 and use an
HP15C (I think that's the number) daily. I still agree with the old T
shirts that [ENTER] > = .
I teach electronics at night at the local community college. My students
all have very fancy calculators that use algebraic notation. And they
consistently get the wrong answer. They're always leaving out parenthesis
and having the calculator solve a problem other than the one they want.
RPN solves this by having you work the problem the way you would by hand:
from the inside out. Also, you see all intermediate results so you can
catch errors if you have a feel for the numbers.
On rounding, here's an example:
1.5+2.5 = 4.0 without rounding
With rounding using "round to even"
2 + 2 = 4
With "rounding up"
2 + 3 = 5
Round to even tends to minimize error.
On Thu, 31 May 2001 07:31:01 -0500 michael brown <AMSAT.ORG> n5qmg
GET INTERNET ACCESS FROM JUNO!
Juno offers FREE or PREMIUM Internet access for less!
Join Juno today! For your FREE software, visit:
http://www.piclist.com hint: To leave the PICList
See also: www.piclist.com/techref/index.htm?key=brain+burp+rounding
You must be a member of the
piclist mailing list
(not only a www.piclist.com member) to post to the