AUTHOR
 Dr. Alistair Ward
DESCRIPTION
 Defines the parameters of a series used in a Spigottable to generate Pi.
 data Series i = MkSeries {
 coefficients :: [i]
 baseNumerators :: [i]
 baseDenominators :: [i]
 nTerms :: DecimalDigits > Int
 bases :: Integral i => Series i > [Ratio i]
Types
Datatypes
 Defines a series composed from a sum of terms, each one of which is the product of a coefficient and a base.
 The coefficents and bases of the series are described in Horner form;
Pi = c1 + (b1 * (c2 + b2 * (c3 + b3 * (...))))
.
MkSeries  

Functions
bases :: Integral i => Series i > [Ratio i]Source
Combines baseNumerators
and baseDenominators
, and as a sideeffect, expresses the ratio in lowest terms.