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feynman1965

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charmantang

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feynman1965: ½ð±Ò+10, ¡ï¡ï¡ïºÜÓаïÖú 2014-06-19 11:10:53
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5Â¥2014-06-18 19:41:44
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dingd

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2Â¥2014-06-18 09:30:39
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feynman1965

½ð³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
2Â¥: Originally posted by dingd at 2014-06-18 09:30:39
wtrÒ²Ó¦¸ÃÓз¶Î§ÏÞÖÆ£¬·ñÔòÖÜÆÚÐÔº¯Êý»áÓÐÎÞÇî¶à×é½â¡£

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3Â¥2014-06-18 09:54:44
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reko34

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sin(wtb*(wtr-wtb))»¹ÊÇsinwtb * (wtr-wtb)£¿
4Â¥2014-06-18 11:08:53
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sxf2012

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6Â¥2014-06-18 20:17:14
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sxf2012

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feynman1965: ½ð±Ò+5, ¡ïÓаïÖú, ͬÑù¸Ðл£¬ËäÈ»ÎÒûÀí½â£¡ 2014-06-19 13:37:58
CODE:
clear
clc
p = 0:0.001:2*pi;
f = (1-cos(p))./(p-sin(p));
p0 = atan(f);
v = sin(p+p0)-sin(p0);
plot(p0,p+p0)
xlabel('wtb')
ylabel('wtr')
grid on;

7Â¥2014-06-18 20:33:26
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

feynman1965

½ð³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
4Â¥: Originally posted by reko34 at 2014-06-18 11:08:53
sin(wtb*(wtr-wtb))»¹ÊÇsinwtb * (wtr-wtb)£¿

sinwtb * (wtr-wtb)
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8Â¥2014-06-19 10:47:59
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charmantang

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9Â¥2014-06-19 12:25:32
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feynman1965

½ð³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
5Â¥: Originally posted by charmantang at 2014-06-18 19:41:44
y=arrayfun(@(b)fzero(@(r)cos(b)-cos(r)-sin(b)*(r-b),2*pi),0:0.01:pi/2);
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y=arrayfun(@(b)fzero(@(r)cos(b)-cos(r)-sin(b)*(r-b),6.28),0:0.01:pi/2);
Ìáʾ£º
Exiting fzero: aborting search for an interval containing a sign change
    because NaN or Inf function value encountered during search.
(Function value at -Inf is NaN.)
Check function or try again with a different starting value.
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10Â¥2014-06-19 13:37:07
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