Replace (fromRational . toRational) with realToFrac everywhere.

[numerical-analysis.git] / src / Integration / Simpson.hs

diff --git a/src/Integration/Simpson.hs b/src/Integration/Simpson.hs
index b7000224764e92095398837dedf3d56eaf4ee96c..2481f850b3bf6e15d7c7fac25c9c65de7d8b6be1 100644 (file)
--- a/src/Integration/Simpson.hs
+++ b/src/Integration/Simpson.hs
@@ -38,7 +38,7 @@ simpson_1 :: (RealFrac a, Fractional b, Num b)
 simpson_1 f a b =
   coefficient * ((f a) + 4*(f midpoint) + (f b))
   where
-    coefficient = (fromRational $ toRational (b - a)) / 6
+    coefficient = (realToFrac (b - a)) / 6
     midpoint = (a + b) / 2