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xiaoze_cool

Ìú³æ (³õÈëÎÄ̳)

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ÎÒÒѾ­Ð´ºÃÁËÁ½¸öº¯Êý£¬·Ö±ðÊÇF(theta,g)ºÍPhi(theta,g)£¬thetaµÄȡֵ·¶Î§ÊÇ(0,2pi),gµÄȡֵ·¶Î§ÊÇ(-1,1)£¬thetaºÍgÔÚȡֵ·¶Î§ÄÚËæ»úȡֵ£¬¸÷µ÷ÓÃÕâÁ½¸öº¯Êýn´Î ±È½ÏËûÃǵÄÔËÐÐʱ¼ä²¢ÐγÉÔËÐÐʱ¼ä¶ÔÕÕͼ£¬ºá×ø±êΪµ÷ÓôÎÊý£¬×Ý×ø±êΪʱ³¤
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asmeng

½ð³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
matlab×ÔÉíÓÐÒ»¶Ô¼ÆÊ±º¯Êý£ºtic£¬³ÌÐò...£¬toc£¬¾Í»áÏÔʾ³ÌÐòÔËÐÐʱ¼ä¡£»òÕßt1=now£¬³ÌÐò...£¬delta_t = now-t1¼ÆËã³ÌÐòµÄÔËÐÐʱ¼ä¡£º¯Êýnow·µ»Øµ±Ç°Ê±¼ä£¨Êµ¼ÊÉÏÊÇ×Ô1970Äê1ÔÂ1ÈÕÒÔÀ´ÖÁ½ñµÄºÁÃëÊý£©£¬doubleÀàÐÍ¡£
2Â¥2014-04-24 21:10:40
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

libralibra

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

æôÆï½«¾ü

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
Õâ¸öÎÊÌâµÄÁ÷³ÌÖ÷ÒªÊǰ´ÕÕ´ÎÊý,·Ö±ðµ÷ÓÃ2¸öº¯Êýn´Î,È»ºó×÷ͼ
CODE:
n = 1:10;
t_f = zeros(1,10);
t_p = zeros(1,10);
for i = 1:length(n)
    % call F
    tic;
    for j=1:i
        F(theta,g);
    end
    t_f(i) = toc;
    % call phi
    tic;
    for j=1:i
        phi(theta,g);
    end
    t_p(i) = toc;
end
plot(n,t_f,'r*-',n,t_p,'bo-');
legend('F','phi');
xlabel('´ÎÊý');
ylabel('ʱ¼ä(s)');

matlab/VB/python/c++/Javaд³ÌÐòÇë·¢QQÓʼþ:790404545@qq.com
3Â¥2014-04-24 23:50:32
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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