Module:JI ratio finder: Difference between revisions

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@@ Line 161: / Line 161: @@
 	return filtered_ratios
-end
--- Filters ratios by whether they exactly match a cent value
--- Nonmatching ratios are filtered out; intended for filtering out all but the
--- unison and equave. For best results, convert the unison and equave into cent
--- values from their respective ratios.
--- There are test cases that may fail:
--- - Calculating the cent value of 27/8 and dividing by 3; this should be the
---   the same as 3/2, but due to floating-point errors, this isn't the case.
-function p.filter_exact_ratio(ratios, cents)
-	local ratios = ratios or { rat.new(3, 2), rat.new(40, 27), rat.new(32, 21) }
-	local cents = cents or rat.cents(rat.new(27, 8)) / 3
-	local exact_ratio = nil
-	for i = 1, #ratios do
-		if rat.cents(ratios[i]) == cents then
-			exact_ratio = rat.copy(ratios[i])
-		end
-	end
-	return exact_ratio
 end