diff --git a/apps/graph/cartesian_function.cpp b/apps/graph/cartesian_function.cpp
index a6993003e..da56be169 100644
--- a/apps/graph/cartesian_function.cpp
+++ b/apps/graph/cartesian_function.cpp
@@ -60,7 +60,7 @@ CartesianFunction::Point CartesianFunction::nextMinimumOfFunction(double start,
   double x = start;
   do {
     bracketMinimum(x, step, max, bracket, evaluate, context);
-    result = brentAlgorithm(bracket[0], bracket[2], evaluate, context);
+    result = brentMinimum(bracket[0], bracket[2], evaluate, context);
     x = bracket[1];
   } while (std::isnan(result.abscissa) && (step > 0.0 ? x <= max : x >= max));
 
@@ -100,11 +100,11 @@ char CartesianFunction::symbol() const {
   return 'x';
 }
 
-CartesianFunction::Point CartesianFunction::brentAlgorithm(double ax, double bx, Evaluation evaluate, Context * context) const {
+CartesianFunction::Point CartesianFunction::brentMinimum(double ax, double bx, Evaluation evaluate, Context * context) const {
   /* Bibliography: R. P. Brent, Algorithms for finding zeros and extrema of
    * functions without calculating derivatives */
   if (ax > bx) {
-    return brentAlgorithm(bx, ax, evaluate, context);
+    return brentMinimum(bx, ax, evaluate, context);
   }
   double e = 0.0;
   double a = ax;
diff --git a/apps/graph/cartesian_function.h b/apps/graph/cartesian_function.h
index c5f19c707..fb8bf760c 100644
--- a/apps/graph/cartesian_function.h
+++ b/apps/graph/cartesian_function.h
@@ -26,7 +26,7 @@ private:
   typedef double (*Evaluation)(const Shared::Function * function, double abscissa, Poincare::Context * context);
   Point nextMinimumOfFunction(double start, double step, double max, Evaluation evaluation, Poincare::Context * context) const;
   void bracketMinimum(double start, double step, double max, double result[3], Evaluation evaluation, Poincare::Context * context) const;
-  Point brentAlgorithm(double ax, double bx, Evaluation evaluation, Poincare::Context * context) const;
+  Point brentMinimum(double ax, double bx, Evaluation evaluation, Poincare::Context * context) const;
   bool m_displayDerivative;
 };