Suppose someone asks you to calculate the area under y = sin(x) over one wavelength? Since half the curve is above the x -axis and half the curve is below the x-axis you might calculate the net area as zero, but that would be false "null" result.
harry On Wed, Feb 6, 2013 at 1:46 PM, Jed Rothwell <jedrothw...@gmail.com> wrote: > Daniel Rocha <danieldi...@gmail.com> wrote: > >> How can you tell whether these are falso positives and not false >> negatives? > > > 0.2 to 0.6 W with this system is zero. Not positive or negative. That is > within the noise. > > As I said before, no instrument can produce exactly zero. > > - Jed >
