piclist 2001\05\31\103822a >
Thread: Brain Burp Rounding??
www.piclist.com/techref/index.htm?key=brain+burp+rounding
picon face BY : 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.

Harold


On Thu, 31 May 2001 07:31:01 -0500 michael brown <KILLspamn5qmg@spam@spamAMSAT.ORG>
writes:
{Quote hidden}

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