NumPy is the fundamental package for scientific computing with Python. It contains among other things:
a powerful N-dimensional array object
sophisticated (broadcasting) functions
tools for integrating C/C++ and Fortran code
useful linear algebra, Fourier transform, and random number
... [More] capabilities
Besides its obvious scientific uses, NumPy can also be used as an efficient multi-dimensional container of generic data. Arbitrary data-types can be defined. This allows NumPy to seamlessly and speedily integrate with a wide variety of databases.
NumPy is licensed under the BSD license, enabling reuse with few restrictions. [Less]
Commons Math is a library of lightweight, self-contained mathematics and statistics components addressing the most common problems not available in the Java programming language or Commons Lang.
It provides implementations of major mathematical algorithms concerning statistics, linear algebra
... [More], differential equations, optimization, root finding ... [Less]
A library of C routines to perform fixed-point (Q-format) mathematical operations, suitable for Embedded DSP systems.
(1) Conversion from floating-point to fixed-point and vice versa (with or without rounding)
(2) Extracting integer-part and fractional-part of Q-number
... [More] Add, Subtract, Multiply, Divide (different versions for dealing with rounding and saturation available)
(4) Trig functions: sin, cos, asin, acos, atan, atan2
(5) Sqrt, Abs, Magnitude-phase, Log, Exp [Less]