Muhammad Usman XJTU

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Thank you guys (@tomleslie , @...

Answered: Muhammad Usman XJTU 5

September 26 2021

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Thank you guys (@tomleslie , @Preben Alsholm ), as I mentioned earlier that I have little knowledge in MAPLE that's why I didn't mentioned PHIb function. Now Please have a look to the attachment and guide me about the errors.

(1)

ode1 := (diff(phi(eta), eta)+epsilon*K*(diff(phi(eta), eta))^3)/(1+epsilon*(diff(phi(eta), eta))^2) = dpdexi*eta

(diff(phi(eta), eta)+0.2e-4*(diff(phi(eta), eta))^3)/(1+0.1e-3*(diff(phi(eta), eta))^2) = 2*eta

(2)

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(9)

Error, (in DEtools/convertsys) unable to convert to an explicit first-order system

while fnormal(u1-u0) <> 0 do z := solve(u1 = (u1-u0)*(a1-x)/(a1-a0), x); a0, a1 := a1, z; u0, u1 := u1, eval(constraint, u(b) = PHIb(eval({ic1, ode1}, alpha = z), u(x), b)) end do