
使用Matlab无法求解出结果。希望Matlab高手能给以解答。谢谢。自己的Matlab学得很烂 vbinhu
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个方程,只能解出一个变量。
1 求x
S = solve('(-662563/20000*cos(319/400)*pi*x*y)*pi*(x+y)+6572370263/500000000*y*exp(-24990001/100000000)*y^2=0','x')
S.x
答案:
两个解:
x=
[ 1/662563000/cos(319/400)/pi^2*(-331281500*cos(319/400)*pi^2+2*(27436858060562500*cos(319/400)^2*pi^4+43546093585640690*cos(319/400)*pi^2*exp(-24990001/100000000))^(1/2))*y]
[ 1/662563000/cos(319/400)/pi^2*(-331281500*cos(319/400)*pi^2-2*(27436858060562500*cos(319/400)^2*pi^4+43546093585640690*cos(319/400)*pi^2*exp(-24990001/100000000))^(1/2))*y]
2 求y
S = solve('(-662563/20000*cos(319/400)*pi*x*y)*pi*(x+y)+6572370263/500000000*y*exp(-24990001/100000000)*y^2=0','y')
S.y
答案:
三个解:
y=
[ 0]
[ 25/6572370263/exp(-24990001/100000000)*(331281500*cos(319/400)*pi^2+2*(27436858060562500*cos(319/400)^2*pi^4+43546093585640690*cos(319/400)*pi^2*exp(-24990001/100000000))^(1/2))*x]
[ 25/6572370263/exp(-24990001/100000000)*(331281500*cos(319/400)*pi^2-2*(27436858060562500*cos(319/400)^2*pi^4+43546093585640690*cos(319/400)*pi^2*exp(-24990001/100000000))^(1/2))*x]
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