Commons Math User Guide

##### User Guide

- Contents
- Overview
- Statistics
- Data Generation
- Linear Algebra
- Numerical Analysis
- Special Functions
- Utilities
- Complex Numbers
- Distributions
- Fractions
- Transform Methods
- 3D Geometry
- Optimization
- Ordinary Differential Equations
- Genetic Algorithms

## 10 Transform methods

This package provides a few transformers for signal analysis. All transformers provide both direct and inverse transforms.

- FastFourierTransformer (produces `Complex` results)
- FastCosineTransformer (produces real results)
- FastSineTransformer (produces real results)
- FastHadamardTransformer (produces real results)