giles 13fb1bd7a9 ocaml: phase 5.1 newton_sqrt.ml baseline (Newton's method, sqrt(2)*1000 = 1414) ...

Newton's method for square root:

  let sqrt_newton x =
    let g = ref 1.0 in
    for _ = 1 to 20 do
      g := (!g +. x /. !g) /. 2.0
    done;
    !g

20 iterations is more than enough to converge for x=2 — result is
~1.414213562. Multiplied by 1000 and int_of_float'd: 1414.

First baseline exercising:
  - for _ = 1 to N do ... done (wildcard loop variable)
  - pure float arithmetic with +. /.
  - the int_of_float truncate-toward-zero fix from iter 117

38 baseline programs total.

2026-05-09 08:29:01 +00:00

153 B

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