Numerical Differential equations in Maple

[zeebo17]

I have numerically solved a set of a differential equations in Maple such as
x' = g(x(s), y(s), z(s))
y' = h(x(s), y(s), z(s))
z' = i(x(s), y(s), z(s)).

So now I have a solution for x(s), y(s), z(s). How would I then find the solution x(t), y(t), z(t) where t is a known function of s: t(s) (or s can be written as a function of t s(t) )?

Thanks!