$ 0 0 Hello,how do I solve this PDE?1.mw eq := .7121678324*(diff(w(x, t), t, t))+diff(w(x, t), x, x, x, x)+0.6e-1*(int(exp(-.1*t+.1*s)*(diff(w(x, s), x, x, x, x)), s = 0 .. t))-(74.36142042+.1078921079*(int((diff(w(x, t), x))^2, x = 0 .. 1))-0.1078921079e-1*E2*(int(exp(-.1*t+.1*s)*(diff(w(x, s), x))^2, [s = 0 .. t, x = 0 .. 1])))*(diff(w(x, t), x, x))-14.55823143*V^2/(1-w(x, t))^2-0.1339448414e-3/(V^2*(1-w(x, t)))-3.653899412*10^18*[4.000000000*10^(-20) .. 1/2500000000000000000]/(pi*(1-w(x, t))^3)-0.1925416693e-1*pi^2/(1-w(x, t))^4 = 0