Hi guys, i have a problem with NLopt SLSQP in C, my compiler throws out a exception after 2 iterations of optimization in my object function, at my computation of gradient, it said:
Exception thrown: write access violation. grad was nullptr. the problem is , i used the same code on matlab , it works fine, but the results of cost function under the initialized value between matlab and c are not the same, the gradient as well, the difference is about 1e-5, and the difference between gradient are huge, could that caused my exception? i noticed that the difference from xAll(solution of A*x + B*u = x_dot, it is my state equation) started at 200th row(xAll should be 2500x5), and the difference is about 1e-12 to 1e-15 did anyone know why? attached is my c-code , could anyone help me
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