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Parameters a,b,c,d,e,f ;

Function int(exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=1;
int(x*exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=6.86;
int(x^2*exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=54.39;
int(x^3*exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=478.14;
int(x^4*exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=4534.51;
int(x^5*exp(a+b*x+c*x^2+d*x^3+e*x^4+f*x^5)),x=0.5779,13.5883)=45534.81;

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2Â¥2016-09-22 13:34:22
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a = -7.58077447408111£¬
b = 3.24764898467487
c = -0.760363713039147
d = 0.0904361907622351
e = -0.00545502179434692
f = 0.000126732091137622
¶ÔÓ¦µÄ·½³ÌÎó²îΪ£º
eq1 = -3.34157372883226e-08
eq2 = -3.92594221132470e-07
eq3 = -4.68014222576585e-06
eq4 = -5.64797326205735e-05
eq5 = -0.000688726569933351
eq6 = -0.00847380648338003
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