Appendix A
Essential C
This appendix is intended to assist those who already know one or more programming languages and may need a brief introduction to C syntax and semantics. The approach provided here is driven by four examples which address a wide range of C usage: numerical integration, lower/upper (LU) decomposition, the fast Fourier transform (FFT), and the game of tic-tac-toe. In these examples the core C syntax is illustrated. Some of the key C syntax elements are highlighted in Table A.1.
A.1. Numerical Integration
Integrating an ordinary differential equation using a method from the Runge–Kutta family of integrators is a common task in scientific computing. The classic fourth-order algorithm, frequently referred to as rk4, illustrates ...
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