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ustcmm

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ÒýÓûØÌû:
2Â¥: Originally posted by zenmebuxing at 2013-09-08 16:08:13
d(lny)=1/y*(dy);
d(lnx)=1/x*(dx);
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3Â¥2013-09-08 16:32:43
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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zenmebuxing

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ustcmm: ½ð±Ò+2, ¡ïÓаïÖú, лл 2013-09-08 19:03:32
d(lny)=1/y*(dy);
d(lnx)=1/x*(dx);
È»ºó¾Í»¯³ÉÁ˺ܼòµ¥µÄ³£Î¢·Ö·½³Ì¡£
2Â¥2013-09-08 16:08:13
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

feixiaolin

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ustcmm: ½ð±Ò+5, ¡ï¡ï¡ïºÜÓаïÖú 2013-09-08 19:03:02
[lny]'=-[nlnx]';
[lny+ln(x^n)]=0;
[ln(y*x^n)]=C;
y=C*x^(-n)
4Â¥2013-09-08 16:51:41
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

zenmebuxing

ľ³æ (³õÈëÎÄ̳)

ÒýÓûØÌû:
3Â¥: Originally posted by ustcmm at 2013-09-08 16:32:43
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5Â¥2013-09-08 17:16:56
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