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ÕýÌ¬ÔÆÄ£ÐÍ ÎÒÏÖÔÚÊÇÊäÈëÒ»¸öÊýµÃµ½Ò»¸ö½á¹û ÎÒÏëÒ»´ÎÊäÈë146¸öÊý µÃµ½146¸ö½á¹û Ôõô¸ÄÕâ¸ö´úÂ룿 MATLAB³õѧÕß Çó½Ì¸÷λ´óÉñ ´úÂëÈçÏ Ex=0.5; En=0.08; He=0.01; n=100; X=zeros(1,n); %²úÉúÒ»¸ö1*nÐ͵ľØÕ󣬯äÔªËØ¶¼Îª0 Y=zeros(1,n); X=normrnd(En,He,1,n); %²úÉúÒ»¸ö1*nÐÍÕýÌ¬Ëæ»úÊý¾ØÕó£¬EnΪÆÚÍû£¬HeΪ·½²î Xi=input('ÊäÈëËæ»úÊýX(1£¬i)£º '); %ÊÖ¶¯ÊäÈë¹Ì¶¨Ëæ»úÊýX for i=1:n i; Enn=X(1,i); X(1,i)=Xi; Y(1,i)=exp(-(X(1,i)-Ex)^2/(2*Enn^2)); MeanY=mean(Y); %ÇóËùÓÐÔÆµÎÔÚij¸ö¹Ì¶¨Ëæ»úÊýXÏÂµÄÆ½¾ùÁ¥Êô¶È end fprintf('Á¥Êô¶È¾ùֵΪ£º %8f',MeanY); |
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