qfunct.m

来自「二进制通信系统的进行蒙特卡罗仿真程序」· M 代码 · 共 6 行

function [y]=Qfunct(x)
% [y]=Qfunct(x)
%      QFUNCT evaluates the Q-function.
%      y=1/sqrt(2*pi)*integral from x to inf of exp(-t^2/2) dt.
%      y=(1/2)*erfc(x/sqrt(2)).
y=(1/2)*erfc(x/sqrt(2));