i8_normal.m

来自「用于生成一个正态分布的伪随机数数值序列」· M 代码 · 共 26 行

function [ x, seed ] = i8_normal ( a, b, seed )

%% I8_NORMAL returns a scaled pseudonormal I8.
%
%  Modified:
%
%    17 July 2006
%
%  Author:
%
%    John Burkardt
%
%  Parameters:
%
%    Input, real A, the mean of the normal PDF.
%
%    Input, real B, the standard deviation of the normal PDF.
%
%    Input, integer SEED, a seed for the random number generator.
%
%    Output, integer X, a sample of the standard normal PDF.
%
%    Output, integer SEED, an updated seed for the random number generator.
%
  x = round ( a + b * r8_normal_01 ( seed ) );