pde45_eq.adb running Given PDE: 0.5 Uwwww(w,x,y,z,t) + 1.5 Uwxyz(w,x,y,z,t) + 2.5 Uwwtt(w,x,y,z,t) + Uxxxx(w,x,y,z,t) + 2 Uyyyy(w,x,y,z,t) + 3 Uzzzz(w,x,y,z,t) + 4 Utttt(w,x,y,z,t) + 5 Uxyt(w,x,y,z,t) + 6 Uyyzz(w,x,y,z,t) + 7 Uztt(w,x,y,z,t) + 8 Uxxx(w,x,y,z,t) + 9 Uyyt(w,x,y,z,t) + 10 Uzt(w,x,y,z,t) + 11 Ut(w,x,y,z,t) + 12 U(w,x,y,z,t) = F(w,x,y,z,t) F(w,x,y,z,t) = 216.0*z*z*t*w*w + 60.0*y*y*z*z + 768.0*x + 168.0*y*y*z*w*w + 35.0*w*z + 144.0*w*w*t*t + 108.0*t*w + 96.0*x*z + 77.0*w*x*y*z + 99.0*w + 10.5*t + 60.0*w*w*w*w + 48.0*x*x*x*x + 36.0*y*y*y*y + 24.0*z*z*z*z + 12.0*t*t*t*t + 70.0*w*x*y + 72.0*y*y*z*z*t*t*w*w + 132.0*y*y*z*z*t*w*w + 240.0*y*y*z*t*w*w + 44.0*t*t*t + 84.0*w*x*y*z*t + 660.0 wmin