An ODE together with values y(x_0), y'(x_0), ..., y^{(n-1)}(x_0) at a single point. Determines a unique solution under mild hypotheses.
An ODE together with values y(x_0), y'(x_0), ..., y^{(n-1)}(x_0) at a single point. Determines a unique solution under mild hypotheses.