Package org.apache.commons.math.util
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Interfaces
DoubleArray Provides a standard interface for double arrays.
NumberTransformer Subclasses implementing this interface can transform Objects to doubles.
Classes
ContinuedFraction Provides a generic means to evaluate continued fractions.
DefaultTransformer A Default NumberTransformer for java.lang.Numbers and Numeric Strings.
MathUtils Some useful additions to the built-in functions in Math .
ResizableDoubleArray

A variable length DoubleArray implementation that automatically handles expanding and contracting its internal storage array as elements are added and removed.

TransformerMap This TansformerMap automates the transformation of of mixed object types.
Convenience routines and common data structures used throughout the commons-math library.