NOTE: Beginning in V7.1 (R14SP3), MATLAB® includes built-in support for the Mersenne Twister. The mex file here is only needed for versions prior to that.
TWISTER produces pseudo-random numbers using the Mersenne Twister algorithm by Nishimura and Matsumoto, and is an alternative to the built-in function RAND in MATLAB. It creates double precision values in the closed interval [0, 1-2^(-53)], and can generate 2^19937 - 1 values before repeating itself.
This is a Mex file implementation derived from a copyrighted C program by Takuji Nishimura and Makoto Matsumoto. See, e.g., http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html
Reference: M. Matsumoto and T. Nishimura, "Mersenne Twister: A 623-Dimensionally Equidistributed Uniform Pseudo-Random Number Generator", ACM Transactions on Modeling and Computer Simulation, Vol. 8, No. 1, January 1998, pp 3--30.