fmincon can't meet nonlinear constraints with a feasible start point

the start point i give can satisfy the constraints but fmincon gives an answer that can't satisfy the constraints.where can the problem is ? in the attachment is the codes : fmincon_test.m is the main function , runfmincon.m is the sub-function to call fmincon ; the constraints are in mycon.m, main_1.m is the objective function which calls a solver for current problem

[Shashank Prasanna]

Please share your objective function, results and other matlab code. Its hard to dig deeper without this information.

Answer 1

[Titus Edelhofer]

Hi,

are you sure they satisfy the constraints? You can check e.g. with

all(A*x0<=b)

Or: what is

max(abs(Aeq*x0-beq))

Similarly feed the non linear restriction function to see if the starting point really fulfills the restriction.

Titus

[Jing Chen]

i'm quite sure about this; i attached the codes here, can you help me to find the bugs ?