蒙特卡洛方法matlab程序

hattrick110

贴一个蒙特卡洛方法的matlab程序，供大家使用。
$ z3 I8 C! s$ C2 O祝大家比赛都能取得好成绩
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% Example Monte Carlo Simulation in Matlab
4 c) Q. p& F4 k( z# [" e% Function: y = x2^2/x1
/ g+ X* q9 R- Z# E%
2 x# S0 c% F7 Y" |! G% Generate n samples from a normal distribution
% r = ( randn(n,1) * sd ) + mu
% mu : mean
! f$ @( V! s0 F& p. n% sd : standard deviation
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% Generate n samples from a uniform distribution
% r = a + rand(n,1) * (b-a)
: M# m/ _1 j" a/ U; i- J" b% a : minimum
% b : maximum
n = 100000; % The number of function evaluations
0 ^7 d# ~" K4 P  D" x0 n  Z/ |% --- Generate vectors of random inputs
% x1 ~ Normal distribution N(mean=100,sd=5)
8 o( C4 K( X, ]2 ^2 t# e4 L" Y, {% x2 ~ Uniform distribution U(a=5,b=15)
x1 = ( randn(n,1) * 5 ) + 100;
x2 = 5 + rand(n,1) * ( 15 - 5 );
2 g0 U9 a4 x3 i% --- Run the simulation
% Note the use of element-wise multiplication
y = x2.^2 ./ x1;
$ W! e# H/ f) V% --- Create a histogram of the results (50 bins)
3 F. X6 E# ~( V0 lhist(y,50);
% --- Calculate summary statistics
y_mean = mean(y)
) f( @+ P$ q# {+ a" Ey_std = std(y)
y_median = median(y)

mma

多谢拉！！！！！！！

sjtucat5

thankyouverymuch

tzhggx

顶啊！不错啊！

BigTou

谢谢啦...................

rever99

个盲目反卷积程序是用模拟退火法做的，想请教

jafy2009

哈哈哈。。。谢谢！！！

eyehappy

thank you!!!!

cherry_s1218

看看。。。。。。

shuxinjian24134

xinga!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!