RosettaCodeData/Task/Euler-method/F-Sharp/euler-method.fs

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let euler f (h : float) t0 y0 =
(t0, y0)
|> Seq.unfold (fun (t, y) -> Some((t,y), ((t + h), (y + h * (f t y)))))
let newtonCoolíng _ y = -0.07 * (y - 20.0)
[<EntryPoint>]
let main argv =
let f = newtonCoolíng
let a = 0.0
let y0 = 100.0
let b = 100.0
let h = 10.0
(euler newtonCoolíng h a y0)
|> Seq.takeWhile (fun (t,_) -> t <= b)
|> Seq.iter (printfn "%A")
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