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matlab С³ÌÐò £¬ÔËÓûý·Öº¯Êý int
syms t  x
>> int(exp(-t)*t^(1/2),0,x)

ans =

1/2*(-2*x^(1/2)+pi^(1/2)*erf(x^(1/2))*exp(x))*exp(-x)
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ÆäÖР int(exp(-t)*t^(1/2),0,x)    exp(-t)*t^(1/2)  Îª»ý·Öº¯Êý
0,x   ÎªÉÏÏÂÏÞ
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xamples:
      syms x x1 alpha u t;
      A = [cos(x*t),sin(x*t);-sin(x*t),cos(x*t)];
      int(1/(1+x^2))           returns     atan(x)
      int(sin(alpha*u),alpha)  returns     -cos(alpha*u)/u
      int(besselj(1,x),x)      returns     -besselj(0,x)
      int(x1*log(1+x1),0,1)    returns      1/4
      int(4*x*t,x,2,sin(t))    returns      2*sin(t)^2*t-8*t
      int([exp(t),exp(alpha*t)])  returns  [exp(t), 1/alpha*exp(alpha*t)]
      int(A,t)                 returns      [sin(x*t)/x, -cos(x*t)/x]
                                            [cos(x*t)/x,  sin(x*t)/x]
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8Â¥2008-09-02 08:28:56
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