GAMS 的 obj=e=1 代表 的什么意思哦

代表等于1啊。方程中等号的写法。=e=

连加的函数是sum， 如sum（i，fx）。 有谁知道连乘的函数吗？@zuolaixi

The model has 7 variables and 8 constraints
with 22 Jacobian elements, 8 of which are nonlinear.
The Hessian of the Lagrangian has 2 elements on the diagonal,
2 elements below the diagonal, and 3 nonlinear variables.
** Infeasible solution. There are no superbasic variables.
这个算是失败的优化吗；