Differential Equation :

We am trying to plot the trajectory but its slope goes to infinity as you can see in the direction field, so We(our computer) cannot calculate the trajectory line. May be we use wrong command

Anyone has an idea?
4805180 4805208
Created by Mathematica 5.0
This is our mathematica code
PlotVectorField[{1, x^2 - y^2}, {x, -10, 10}, {y, -10, 10}, Frame ->
True, ScaleFunction -> (1 &), PlotPoints -> 20, Axes -> True,
AxesLabel -> {"x", "y"}]
P.S. Please copy your mathematica code here in order to help someone who want to use mathematica(or one in our class including me

)