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ypgdjh

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[求助] 求解复杂的二重积分,数值解

f=z1.*z2.*2.13./((0.0001993*z1.^5 + 2.697e-18*z1.^4 - 0.01092*z1.^3 - 9.502e-17*z1.^2 + 0.2485*z1).^(213/100).*(0.0001993*z2.^5 + 2.697e-18*z2.^4 - 0.01092*z2.^3 - 9.502e-17*z2.^2 + 0.2485*z2).^(213/100).*(1./(0.0001993*z1.^5 + 2.697e-18*z1.^4 - 0.01092*z1.^3 - 9.502e-17*z1.^2 + 0.2485*z1).^(113/100) +1./(0.0001993*z2.^5 + 2.697e-18*z2.^4 - 0.01092.*z2.^3 - 9.502e-17*z2.^2 + 0.2485*z2).^(113/100) - 1.0).^(326/113));
z1,z2区间为[-inf,inf],也可粗略估计下区间[-10,10]的。
多谢!
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