## Expand description

In addition to working out the error bounds algebraically, we can
also have the computer do this work for us as some computation is
being performed. This approach is known as *running error
analysis*.

## Structs

**EFloat** keeps track of an interval that describes the
uncertainty of a value of interest.

## Functions

Find solution(s) of the quadratic equation at^{2} + bt + c = 0 using
*EFloat* instead of *Float* for error bounds.