Hello,

is there any way to solve a system like (d denotes the derivates):

f₁(x₁,x₂,y₁,y₂)=0

f₂(x₁,x₂,y₁,y₂)=0

dg₁(x₁,x₂,y₁,y₂)/dy₁=0

dg₂(x₁,x₂,y₁,y₂)/dy₂=0

Hi,

I'm trying to solve a system of 3 equations with 3 unknowns using fsolve(). The (very long) equations depend on a parameter d. For some values of d, fsolve finds a solution, for other values of d it doesn't, although I can specify a quite narrow range in which there should be a solution. Is there any way to force fsolve() to try harder? It returns unevaluated after about 5 min and I wouldn't mind if it searched for several hours...