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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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17
Task/Monte-Carlo-methods/Erlang/monte-carlo-methods-1.erl Normal file
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-module(monte).
-export([main/1]).
monte(N)->
monte(N,0,0).
monte(0,InCircle,NumPoints) ->
4 * InCircle / NumPoints;
monte(N,InCircle,NumPoints)->
Xcoord = rand:uniform(),
Ycoord = rand:uniform(),
monte(N-1,
if Xcoord*Xcoord + Ycoord*Ycoord < 1 -> InCircle + 1; true -> InCircle end,
NumPoints + 1).
main(N) -> io:format("PI: ~w~n", [ monte(N) ]).

20
Task/Monte-Carlo-methods/Erlang/monte-carlo-methods-2.erl Normal file
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-module(monte2).
-export([main/1]).
monte(N)->
monte(N,0,0).
monte(0,InCircle,NumPoints) ->
4 * InCircle / NumPoints;
monte(N,InCircle,NumPoints)->
X = rand:uniform(),
Y = rand:uniform(),
monte(N-1, within(X,Y,InCircle), NumPoints + 1).
within(X,Y,IN)->
if X*X + Y*Y < 1 -> IN + 1;
true -> IN
end.
main(N) -> io:format("PI: ~w~n", [ monte(N) ]).