# Package com.numericalmethod.suanshu.analysis.function.rn2r1.univariate

• Interface Summary
Interface Description
ContinuedFraction.Partials
This interface defines a continued fraction in terms of the partial numerators an, and the partial denominators bn.
UnivariateRealFunction
A univariate real function takes one real argument and outputs one real value.
• Class Summary
Class Description
AbstractUnivariateRealFunction
A univariate real function takes one real argument and outputs one real value.
ContinuedFraction
A continued fraction representation of a number has this form: $z = b_0 + \cfrac{a_1}{b_1 + \cfrac{a_2}{b_2 + \cfrac{a_3}{b_3 + \cfrac{a_4}{b_4 + \ddots\,}}}}$ ai and bi can be functions of x, which in turn makes z a function of x.
StepFunction
A step function (or staircase function) is a finite linear combination of indicator functions of intervals.
• Exception Summary
Exception Description
ContinuedFraction.MaxIterationsExceededException
RuntimeException thrown when the continued fraction fails to converge for a given epsilon before a certain number of iterations.