# Homework Help: Numerical Methods

1. Sep 26, 2005

### stunner5000pt

Not a hard question really..

Using 3 - digit arithmetic calculcate 4/5 + 1/3 and compute the relative error

4/5 + 1/3 = 17/15
chopping 4/5 = 0.800 and 1/3 = 0.333
0.800 + 0.333 = 1.133 (chop) 1.13
im assuming that after this point there is no chopping
relative error aboslute value of $$\frac{\frac{17}{15} - 1.13}{\frac{17}{15}} = 0.0033$$
and the rleaitve error would be given in 3 siginificant digits?
sp 3.33 x 10^-3 is the relative error?

please tell me if i am right or wrong?