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FernandoKimi

гæ (СÓÐÃûÆø)

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¶þάÇúÏߵķ½³ÌΪ£ºy=157.2*sin(pi/300*x)£¬¼ÙÉ軡³¤SΪ10¡¢20¡¢30¡¢¡­¡­¡¢100£¬ÒªÓжÔÓ¦µÄMatlab³ÌÐò£¬Íû´óÉñÖ¸µ¼£¡
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ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wurongjun

ר¼Ò¹ËÎÊ (Ö°Òµ×÷¼Ò)

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¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
FernandoKimi: ½ð±Ò+12, ¡ï¡ï¡ïºÜÓаïÖú, ÇÉÃîµØ½â¾öÁËÎÊÌ⣬лл£¡ 2016-01-05 14:52:50
ÎÒдÁËÒ»¸ö²é±í·¨³ÌÐòÄã²Î¿¼Ï£¡
function jifenbiao
b=pi/2:pi/200:10*pi;
for i=1:length(b)
    d(i)=quad('(17161*pi^2*cos((pi*x)/300).^2)/62500 + 1',0,b(i));
end
S=10:10:100;
for i=1:length(S)
    m=min(abs(d-S(i)));
id(i)=find(m==abs(d-S(i)));
end
disp(['    »¡³¤','  ²ÎÊý'])
[S',b(id)']
ÔËÐнá¹û£º
»¡³¤  ²ÎÊý

ans =

   10.0000    2.7018
   20.0000    5.3878
   30.0000    8.1053
   40.0000   10.8228
   50.0000   13.5403
   60.0000   16.2892
   70.0000   19.0538
   80.0000   21.8341
   90.0000   24.6615
  100.0000   27.5046
ÉÆ¶ñµ½Í·ÖÕÓб¨,È˼äÕýµÀÊDz×É£.
2Â¥2015-12-29 17:02:38
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