The Standard Library has several libraries of classes to perform numeric manipulations. In this section we will cover two: compile-time arithmetic, using <ratio>, and complex numbers, using <complex>.
Using the numeric libraries
Compile time arithmetic
Fractions are a problem because there are some for which there are not enough significant figures to accurately represent them, resulting in losing accuracy when you use them in further arithmetic. Furthermore, computers are binary and merely converting decimal fractional parts to binary will lose accuracy. The <ratio> library provides classes that allow you to represent fractional numbers as objects that are ratios of integers, and perform fraction calculations...
