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Question: Taking so much time to solve?

Question:Taking so much time to solve?

Andiguys 75 Maple 2019
solve parametric duplicate-question
3 hours ago
0

Easy way to solve 3 equation simultaneously?:

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restart
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with(Optimization); with(plots); with(LinearAlgebra)
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K2 := -(Pn-Pr)/(1-delta)+(-beta*((-2*delta+2)*tau^2+((-Pn+Pr-delta+1)*Cr+(-2+2*delta)*(w+i2))*tau+Cr*i2*(-1+delta+Pn-Pr))*upsilon/((4*delta-4)*tau+Cr*(-1+delta+Pn-Pr))+Pr)/delta+(Pr-w-Cr)*beta*(-2+2*delta)*tau*upsilon/(((4*delta-4)*tau+Cr*(-1+delta+Pn-Pr))*delta) = 0

-(Pn-Pr)/(1-delta)+(-beta*((-2*delta+2)*tau^2+((-Pn+Pr-delta+1)*Cr+(-2+2*delta)*(w+i2))*tau+Cr*i2*(-1+delta+Pn-Pr))*upsilon/((4*delta-4)*tau+Cr*(-1+delta+Pn-Pr))+Pr)/delta+(Pr-w-Cr)*beta*(-2+2*delta)*tau*upsilon/(((4*delta-4)*tau+Cr*(-1+delta+Pn-Pr))*delta) = 0

 (1)
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K3 := 1-(Pn-Pr)/(1-delta)-(Pn-Cn)/(1-delta)+(Pr-w-Cr)*(1/(1-delta)-(-beta*(Cr*i2-Cr*tau)*upsilon/((4*delta-4)*tau+Cr*(-1+delta+Pn-Pr))+beta*((-2*delta+2)*tau^2+((-Pn+Pr-delta+1)*Cr+(-2+2*delta)*(w+i2))*tau+Cr*i2*(-1+delta+Pn-Pr))*upsilon*Cr/((4*delta-4)*tau+Cr*(-1+delta+Pn-Pr))^2)/delta)+Ce*rho0/(1-delta) = 0

1-(Pn-Pr)/(1-delta)-(Pn-Cn)/(1-delta)+(Pr-w-Cr)*(1/(1-delta)-(-beta*(Cr*i2-Cr*tau)*upsilon/((4*delta-4)*tau+Cr*(-1+delta+Pn-Pr))+beta*((-2*delta+2)*tau^2+((-Pn+Pr-delta+1)*Cr+(-2+2*delta)*(w+i2))*tau+Cr*i2*(-1+delta+Pn-Pr))*upsilon*Cr/((4*delta-4)*tau+Cr*(-1+delta+Pn-Pr))^2)/delta)+Ce*rho0/(1-delta) = 0

 (2)
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K4 := (Pn-Cn)/(1-delta)+(Pn-Pr)/(1-delta)-(-beta*((-2*delta+2)*tau^2+((-Pn+Pr-delta+1)*Cr+(-2+2*delta)*(w+i2))*tau+Cr*i2*(-1+delta+Pn-Pr))*upsilon/((4*delta-4)*tau+Cr*(-1+delta+Pn-Pr))+Pr)/delta+(Pr-w-Cr)*(-1/(1-delta)-(-beta*(-Cr*i2+Cr*tau)*upsilon/((4*delta-4)*tau+Cr*(-1+delta+Pn-Pr))-beta*((-2*delta+2)*tau^2+((-Pn+Pr-delta+1)*Cr+(-2+2*delta)*(w+i2))*tau+Cr*i2*(-1+delta+Pn-Pr))*upsilon*Cr/((4*delta-4)*tau+Cr*(-1+delta+Pn-Pr))^2+1)/delta)-Ce*rho0/(1-delta) = 0

(Pn-Cn)/(1-delta)+(Pn-Pr)/(1-delta)-(-beta*((-2*delta+2)*tau^2+((-Pn+Pr-delta+1)*Cr+(-2+2*delta)*(w+i2))*tau+Cr*i2*(-1+delta+Pn-Pr))*upsilon/((4*delta-4)*tau+Cr*(-1+delta+Pn-Pr))+Pr)/delta+(Pr-w-Cr)*(-1/(1-delta)-(-beta*(-Cr*i2+Cr*tau)*upsilon/((4*delta-4)*tau+Cr*(-1+delta+Pn-Pr))-beta*((-2*delta+2)*tau^2+((-Pn+Pr-delta+1)*Cr+(-2+2*delta)*(w+i2))*tau+Cr*i2*(-1+delta+Pn-Pr))*upsilon*Cr/((4*delta-4)*tau+Cr*(-1+delta+Pn-Pr))^2+1)/delta)-Ce*rho0/(1-delta) = 0

 (3)
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sol := solve({K2, K3, K4}, {Pn, Pr, w})

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