using TyOptimization
function fun(x)
   f = 2x[1]^3 + 4x[1] * x[2]^3 - 10 * x[1] * x[2] + x[2]^2 +8  
    return f
end
x0 = [0,0];
result = fminsearch(fun, x0)
println("优化问题的解：x= ", result.x)