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xym_xuyimin 发表于 2010-5-16 22:56:50

C_n^k+C_n^k-1=C_n+1^k

yye_emath 发表于 2010-7-29 11:52:00

(1,(x!=0)),(x^2+1,(x=0))

jhfxh126com 发表于 2010-8-16 00:56:18

{e^{2x}}

jhfxh126com 发表于 2010-8-16 00:58:35

e^{2x}

jhfxh126com 发表于 2010-8-16 01:02:47

{sum_{n=0}^{infty}frac{(6n)!(545140134n+13591409)}{(n!)^3(3n)!(-640320)^{3n}}

jhfxh126com 发表于 2010-8-16 17:04:45

\int_0^1 {\frac{{\sin x}}{x}dx}

chyanog 发表于 2010-8-24 14:17:57

本帖最后由 chyanog 于 2010-8-24 14:33 编辑

\frac{1}{100}(9045+1010n-5\cos(\pi/n)-\sqrt{50+10\sqrt{5}}(\sin(\frac{1}{5}\pi(8n+1))+\sin(\frac{1}{5}\pi(1-2n)))-\sqrt{50-10\sqrt{5}}(\sin(\frac{2}{5}\pi(3n+1))+\sin(\frac{2}{5}\pi(1-2n)))-5(\sqrt{5}-1)(\cos(\frac{1}{5}\pi(3n+1))+\cos(\frac{1}{5}\pi(1-7n)))-5(1+\sqrt{5})(\cos(\frac{1}{5}\pi(n+2))+\cos(\frac{1}{5}\pi(2-9n))))

gxqcn 发表于 2010-8-24 21:04:15

太长的 TeX，你可以分成多个 TeX，以便正常显示。

wcaoq 发表于 2010-8-27 12:32:35

int(x_1^2+y_1^2)dx

wcaoq 发表于 2010-8-27 12:33:05

\intxdx

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