Post Reply 
Wrong integral calculation
02-15-2017, 09:01 PM
Post: #1
Wrong integral calculation
Today I was doing an exercise where I had to calculate a really simple integral. I was too lazy to do it so i took my Prime to solve it.
I had to calculate the integral of (((10e-12)^2)/f)*df from 10 to 198e3.

I get the same result in cas and in home: 661.2397e-24
The correct result is: 989.3437e-21

This is quite bad. What's happening?
Find all posts by this user
Quote this message in a reply
02-15-2017, 10:26 PM
Post: #2
RE: Wrong integral calculation
Annoying bug, I tried that and got your wrong result, if you take that factor outside the integral, better before, as a constant factor, you get the correct result.
Arno
Find all posts by this user
Quote this message in a reply
02-16-2017, 10:05 AM
Post: #3
RE: Wrong integral calculation
During the computation of the quadrature on the first subdivision, one of the error estimates is about 1e-24, and considered to be 0, therefore the result of this first approximation is returned.
Find all posts by this user
Quote this message in a reply
Post Reply 




User(s) browsing this thread: