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wsry0112: ½ð±Ò+30, ¡ï¡ï¡ïºÜÓаïÖú, ´ó¸ç£¬ÎÒÕæµÄû×ö³öÀ´£¬ÔÛÏÈÔ¤¸¶ÕâЩ£¬µÈ³ö½á¹ûÒ»¶¨Ï¤Êý·îÉÏ 2013-11-25 21:54:11
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Integrate[exp[-(x-1)^2/2]*Integrate[ exp[-(y-1)^2/8], {y, 0, x} ]), {x, 0, Infinity} ]
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Integrate[ exp[-(y-1)^2/8], {y, 0, x}
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sqrt(2*pi)*(erf((x-1)/ 2.828427125)+ 0.38292492255)

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a=Integrate[exp[-(x-1)^2/2]*sqrt(2*pi)*erf((x-1)/ 2.828427125)], {x, 0, Infinity} ]= 0.541176
b=Integrate[exp[-(x-1)^2/2]*sqrt(2*pi)* 0.38292492255], {x, 0, Infinity} ]= 2.0242655708

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Sum(a, b)/(4*pi)=0.204151353603134
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feixiaolin

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2Â¥2013-11-25 13:17:43
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hank612

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2Â¥: Originally posted by feixiaolin at 2013-11-25 13:17:43
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We_must_know. We_will_know.
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wsry0112

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2Â¥: Originally posted by feixiaolin at 2013-11-25 13:17:43
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