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0810111432(Edstrayer´ú·¢): ½ð±Ò+5 2016-01-09 01:35:13
Ö»ÄÜÇóÊýÖµ½âÀ²!ûÓнâÎö½â!
>> syms a b t
>> int(b^(exp(a*t)),t)
ans =
-1/a*Ei(1,-exp(a*t)*log(b))
ÀýÈça=-3£¬b=2,¡÷t=1
>> quad('2.^(exp(-3*t))',0,1)
ans =
    1.2666
>>
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2Â¥2015-08-12 15:32:05
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0810111432(Edstrayer´ú·¢): ½ð±Ò+3 2016-01-09 01:35:36
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