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## Mac OS X †

These articles introduce various open source software packages, which are mainly used for scientific calculation, and explain how to install the packages on Mac OS X.

### OS X / NuPIC †

OS X/ NuPIC introduces NuPIC. Then, it explains how to install NuPIC on Mac OS X. NuPIC is an algorithm for machine learning. The theoretical foundation of NuPIC is CLA/HTM Theory. This is developed by Numenta, and it is freely available at GitHub.

### OS X / GMP †

OS X / GMP explains how to install GMP on Mac OS X. GMP is a free C library for arbitrary precision arithmetic, operating on signed integers, rational numbers, and floating-point numbers. If you like to access GMP from Python environment, gmpy or gmpy2 is also required.

### OS X / MPFR †

OS X / MPFR shows how to install MPFR on Mac OS X. MPFR is a C library for multiple-precision floating-point computations with current rounding. If you like to use this library from Python environment, you need gmpy2. (gmpy is strictly for GMP and is no longer maintained by the community.)

### OS X / MPC †

OS X / MPC explains how to install MPC on Mac OS X. MPC is a C library for the arithmetic of complex numbers with arbitrarily high precision and correct rounding of the result.

### OS X / gmpy †

OS X / gmpy explains how to use gmpy on Mac OS X. gmpy is an expansion Python module for using GMP from Python. gmpy only supports GMP, but gmpy2 supports GMP as well as MPFR. This shows how to install gmpy2 on Python, which runs on Mac OS X. (According to the website of GMP, GMP is a free C library for arbitrary precision arithmetic, operating on signed integers, rational numbers, and floating-point numbers.)

### OS X / bigfloat †

OS X / bigfloat introduces bigfloat, an expansion Python module, which is used for accessing MPFR from Python. Then, it explains how to install bigfloat on Python, which runs on Mac OS X. (According to the website of the MPFR library, MPFR is a C library for multiple-precision floating-point computations with correct rounding.)

### OS X /PyQt5 †

OS X/PyQt5 shows how to install PyQt on Mac OS X. PyQt is a Python bindings for the Qt cross-platform GUI kit. PyQt is developed by an UK software company, RiverBank Computing Ltd. This article explains the installation process of Qt from its source code and how to install PyQt on Mac OS X.

## Revision History †

- 2015/01/05 This article is initially uploaded