public void ExponentSolveToEulerTest()
{
foreach (var sp in Ode.Euler(0,
1,
(t, x) => - x,
new Options {
RelativeTolerance = 1e-3, InitialStep = 0.01
}).SolveTo(100))
{
Assert.IsTrue(Math.Abs(sp.X[0] - Math.Exp(-sp.T)) < 1e-2);
}
}