diff --git a/Numeric/RootFinding.hs b/Numeric/RootFinding.hs
--- a/Numeric/RootFinding.hs
+++ b/Numeric/RootFinding.hs
@@ -120,7 +120,7 @@
   = RelTol !Double
     -- ^ Relative error tolerance. Given @RelTol ε@ two values are
     --   considered approximately equal if
-    --   \[ |a - b| / |\operatorname{max}(a,b)} < \vareps \]
+    --   \[ \frac{|a - b|}{|\operatorname{max}(a,b)} < \varepsilon \]
   | AbsTol !Double
     -- ^ Absolute error tolerance. Given @AbsTol δ@ two values are
     --   considered approximately equal if \[ |a - b| < \delta \].
diff --git a/math-functions.cabal b/math-functions.cabal
--- a/math-functions.cabal
+++ b/math-functions.cabal
@@ -1,5 +1,5 @@
 name:           math-functions
-version:        0.3.0.0
+version:        0.3.0.1
 cabal-version:  >= 1.10
 license:        BSD3
 license-file:   LICENSE