mersenne twister algorithm

The old LCG (linear congruential generator) represents the best and simplest pseudo-random number generator algorithm. The main reason is that it is easy to understand, easy to implement, and fast.   The LCG algorithm is based on the formula: X (n +

The random numbers we speak of actually imply pseudo random numbers. Many friends may think of the C language rand (), unfortunately, this function produces random number of randomness is very poor, and the speed is very slow, I believe almost not

Comparison between functions rand and mt_rand in PHP. PHP functions rand and mt_randmt_rand () are four times faster than rand (). The old libc random number generator has some uncertain and unknown features and is very slow. PHP rand () functions

Mt_rand () is four times faster than rand (). many old libc random number generators have some uncertain and unknown features and are very slow. The rand () function of PHP uses the libc random number generator by default. The mt_rand () function is

In the previous blog, we learned about the real random number generator based on physical phenomena, however, the real random number generation is slow, for the actual computation needs, the random number in the computer is generated by the program

PHP Functions Rand and Mt_rand 　　 Mt_rand () four times times faster than Rand () 　　 Many old libc random number generators have some uncertainties and unknown properties and are slow. The rand () function of PHP uses the libc random number

PHP functions rand and mt_rand 　　 Mt_rand () is four times faster than rand () 　　 Many old libc random number generators have some uncertain and unknown features and are very slow. The rand () function of PHP uses the libc random number generator

Mt_rand () is four times faster than rand (). many old libc random number generators have some uncertain and unknown features and are very slow. The rand () function of PHP uses the libc random number generator by default. The mt_rand () function is

RandomThe random class in Java generates a pseudo-random number, uses the seed of 48-bit, and then calls a linear congruential formula linear congruence equation (Donald Knuth's programming Art of 3.2.1)If two random instances use the same seed, and

RandomReproduced content, there are changes, thanks to the original author ()The random class in Java generates a pseudo-random number, uses the seed of 48-bit, and then calls a linear congruential formula linear congruence equation (Donald Knuth's