### tp025v2.apm

Model tp025v2
! Source version 1
! Some trial without mitigation.
! x[1] and x[2] have been scaled by hand.
! Starting point data is now
! mf = 3.283499999966359e+01
! g1 = -1.932447347553499e-09
! g2 = -4.392663727149771e-08
! g3 = 1.994386449392023e-08 ,
! not being much better than
! mf = 3.283499999966359e+01
! g1 = -7.729789390213997e-11
! g2 = -1.757065490859908e-09
! g3 = 1.994386449392023e-08 .
Parameters
ai[1] = 1
ai[2:99] = ai[1:98] + 1
u[1:99] = 25 + (-50*log(ai[1:99]/100))^(2/3)
End Parameters
Variables
x[1] = 4, >= 0.004, <= 4
x[2] = 0.5, >= 0, <= 1.024
x[3] = 3, >= 0, <= 5
obj
End Variables
Intermediates
f[1:99] = (-1/100)*ai[1:99] &
+ exp((-1/(25*x[1]))*(u[1:99] - 25*x[2])^x[3])
s[1] = f[1]^2
s[2:99] = s[1:98] + f[2:99]^2
mf = s[99]
End Intermediates
Equations
obj = mf
! best known objective = 0
! begin of best known solution
! x[1] = 2
! x[2] = 1
! x[3] = 1.5
! end of best known solution
End Equations
End Model

Stephan K.H. Seidl