yangdi865
2012-05-23, 18:31
符号表达式积分,并且积分的上下限也是符号,用int积没有原函数积不出来,请问有什么方法可以解决，符号表达式是关于t，tuo的一个复杂函数，积分的上下限是0到t,对于tuo积分，int函数因为被积函数没有原函数而不能用，请问咋解决？被积函数为
B=sin(323091014.5910616675640355570379*t-323091014.5910616675640355570379*tuo)*(3211100.0/(-(6.0*tuo)/(0.007283/exp(5952.3809523880481719970703125*tuo)-0.007283))^(1/2)+(1044400000.0*tuo)/(exp(5952.3809523880481719970703125*tuo)*(0.007283/exp(5952.3809523880481719970703125*tuo)-0.007283)*(-(6.0*tuo)/(0.007283/exp(5952.3809523880481719970703125*tuo) - 0.007283))^(1/2)))
B=sin(323091014.5910616675640355570379*t-323091014.5910616675640355570379*tuo)*(3211100.0/(-(6.0*tuo)/(0.007283/exp(5952.3809523880481719970703125*tuo)-0.007283))^(1/2)+(1044400000.0*tuo)/(exp(5952.3809523880481719970703125*tuo)*(0.007283/exp(5952.3809523880481719970703125*tuo)-0.007283)*(-(6.0*tuo)/(0.007283/exp(5952.3809523880481719970703125*tuo) - 0.007283))^(1/2)))