Price fraction: Difference between revisions

m
(Added Erlang and Haskell)
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=={{header|Erlang}}==
<lang erlang>price_fractionpriceFraction(N) when N < 0 orelse N > 1 ->
erlang:error('Values must be between 0 and 1.');
priceFraction(N) when N < 0.06 -> 0.10;