Module:Rational: Difference between revisions

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 -- determine whether a rational number is equal to another; integers are also allowed
 function p.eq(a, b)
-	local c = p.sub(a, b)
+	if type(a) == 'number' then
-	return c.zero
+		a = p.new(a)
+	end
+	if type(b) == 'number' then
+		b = p.new(b)
+	end
+	if a.nan or b.nan then
+		return false
+	end
+	if a.inf and b.inf then
+		return a.sign == b.sign
+	end
+	if a.inf or b.inf then
+		return false
+	end
+	if a.zero and b.zero then
+		return true
+	end
+	if a.zero or b.zero then
+		return false
+	end
+	for factor, power in pairs(a) do
+		if b[factor] ~= power then
+			return false
+		end
+	end
+	return true
 end