More on Floating-Point Numbers
Comparing Floating-Point Numbers: check for an
error within some range
Underflow and Overflow: Numbers can be too
large or too small to be represented.
Cancellation Error: problems can occur when
arithmetic operations occur on values of wildly
different magnitudes: (1 + 0.00001234 – 1) =
0.00001234. For four digits of precision, this
doesn’t work, why?