diff --git a/apps/settings/base.de.i18n b/apps/settings/base.de.i18n
index 80976787c..d2c8f4f43 100644
--- a/apps/settings/base.de.i18n
+++ b/apps/settings/base.de.i18n
@@ -58,6 +58,10 @@ SymbolMultiplicationCross = "Kreuz "
 SymbolMultiplicationMiddleDot = "Mittelpunkt "
 SymbolMultiplicationStar = "Stern "
 SymbolMultiplicationAutoSymbol = "automatisch "
+SymbolFunction = "Ausdrucksformat "
+SymbolDefaultFunction = "Standardl "
+SymbolArgFunction = "Leer "
+SymbolArgDefaultFunction = "Argument "
 PythonFont = "Python Schriftart"
 Large = "Groß "
 Small = "Klein "
diff --git a/apps/settings/base.en.i18n b/apps/settings/base.en.i18n
index 0808dbd02..37b675a31 100644
--- a/apps/settings/base.en.i18n
+++ b/apps/settings/base.en.i18n
@@ -58,6 +58,10 @@ SymbolMultiplicationCross = "Cross "
 SymbolMultiplicationMiddleDot = "Dot "
 SymbolMultiplicationStar = "Star "
 SymbolMultiplicationAutoSymbol = "Auto "
+SymbolFunction = "Expression format "
+SymbolDefaultFunction = "Default "
+SymbolArgFunction = "Empty "
+SymbolArgDefaultFunction = "Argument "
 PythonFont = "Python Font"
 Large = "Large "
 Small = "Small "
diff --git a/apps/settings/base.es.i18n b/apps/settings/base.es.i18n
index b12a22407..a0f37d140 100644
--- a/apps/settings/base.es.i18n
+++ b/apps/settings/base.es.i18n
@@ -58,6 +58,10 @@ SymbolMultiplicationCross = "Contrariar "
 SymbolMultiplicationMiddleDot = "Punto "
 SymbolMultiplicationStar = "Estrella "
 SymbolMultiplicationAutoSymbol = "Auto "
+SymbolFunction = "Formato expresión "
+SymbolDefaultFunction = "Defecto "
+SymbolArgFunction = "Vacío "
+SymbolArgDefaultFunction = "Argumento "
 PythonFont = "Fuente Python"
 Large = "Grande "
 Small = "Pequeña "
diff --git a/apps/settings/base.fr.i18n b/apps/settings/base.fr.i18n
index 839a3afd3..8c86e1044 100644
--- a/apps/settings/base.fr.i18n
+++ b/apps/settings/base.fr.i18n
@@ -58,6 +58,10 @@ SymbolMultiplicationCross = "Croix "
 SymbolMultiplicationMiddleDot = "Point "
 SymbolMultiplicationStar = "Etoile "
 SymbolMultiplicationAutoSymbol = "Automatique "
+SymbolFunction = "Format expressions "
+SymbolDefaultFunction = "Défaut "
+SymbolArgFunction = "Vide "
+SymbolArgDefaultFunction = "Arguments "
 PythonFont = "Police Python"
 Large = "Grand "
 Small = "Petit "
diff --git a/apps/settings/base.hu.i18n b/apps/settings/base.hu.i18n
index 17563df33..214442b72 100644
--- a/apps/settings/base.hu.i18n
+++ b/apps/settings/base.hu.i18n
@@ -58,6 +58,10 @@ SymbolMultiplicationCross = "Kereszt"
 SymbolMultiplicationMiddleDot = "Pont "
 SymbolMultiplicationStar = "Csillag "
 SymbolMultiplicationAutoSymbol = "Automata "
+SymbolFunction = "Kifejezési formátum "
+SymbolDefaultFunction = "alapértelmezett "
+SymbolArgFunction = "Üres "
+SymbolArgDefaultFunction = "Argumentummal "
 PythonFont = "Python Betütipus"
 Large = "Nagy "
 Small = "Kicsi "
diff --git a/apps/settings/base.pt.i18n b/apps/settings/base.pt.i18n
index 39742e62e..0efe7863d 100644
--- a/apps/settings/base.pt.i18n
+++ b/apps/settings/base.pt.i18n
@@ -58,6 +58,10 @@ SymbolMultiplicationCross = "crómio "
 SymbolMultiplicationMiddleDot = "ponto médio "
 SymbolMultiplicationStar = "estrela "
 SymbolMultiplicationAutoSymbol = "automático "
+SymbolFunction = "Formato expressão "
+SymbolDefaultFunction = "Padrão "
+SymbolArgFunction = "Vazio "
+SymbolArgDefaultFunction = "Argumento "
 PythonFont = "Fonte Python"
 Large = "Ampla "
 Small = "Pequeno "
diff --git a/apps/settings/main_controller.cpp b/apps/settings/main_controller.cpp
index 6c0db7068..d0257306d 100644
--- a/apps/settings/main_controller.cpp
+++ b/apps/settings/main_controller.cpp
@@ -14,7 +14,8 @@ constexpr SettingsMessageTree s_modelEditionModeChildren[2] = {SettingsMessageTr
 constexpr SettingsMessageTree s_modelFloatDisplayModeChildren[4] = {SettingsMessageTree(I18n::Message::Decimal), SettingsMessageTree(I18n::Message::Scientific), SettingsMessageTree(I18n::Message::Engineering), SettingsMessageTree(I18n::Message::SignificantFigures)};
 constexpr SettingsMessageTree s_modelComplexFormatChildren[3] = {SettingsMessageTree(I18n::Message::Real), SettingsMessageTree(I18n::Message::Cartesian), SettingsMessageTree(I18n::Message::Polar)};
 constexpr SettingsMessageTree s_symbolChildren[4] = {SettingsMessageTree(I18n::Message::SymbolMultiplicationCross),SettingsMessageTree(I18n::Message::SymbolMultiplicationMiddleDot),SettingsMessageTree(I18n::Message::SymbolMultiplicationStar),SettingsMessageTree(I18n::Message::SymbolMultiplicationAutoSymbol)};
-constexpr SettingsMessageTree s_modelMathOptionsChildren[5] = {SettingsMessageTree(I18n::Message::AngleUnit, s_modelAngleChildren), SettingsMessageTree(I18n::Message::DisplayMode, s_modelFloatDisplayModeChildren), SettingsMessageTree(I18n::Message::EditionMode, s_modelEditionModeChildren), SettingsMessageTree(I18n::Message::ComplexFormat, s_modelComplexFormatChildren), SettingsMessageTree(I18n::Message::SymbolMultiplication, s_symbolChildren)};
+constexpr SettingsMessageTree s_symbolFunctionChildren[3] = {SettingsMessageTree(I18n::Message::SymbolDefaultFunction), SettingsMessageTree(I18n::Message::SymbolArgDefaultFunction), SettingsMessageTree(I18n::Message::SymbolArgFunction)};
+constexpr SettingsMessageTree s_modelMathOptionsChildren[6] = {SettingsMessageTree(I18n::Message::AngleUnit, s_modelAngleChildren), SettingsMessageTree(I18n::Message::DisplayMode, s_modelFloatDisplayModeChildren), SettingsMessageTree(I18n::Message::EditionMode, s_modelEditionModeChildren), SettingsMessageTree(I18n::Message::ComplexFormat, s_modelComplexFormatChildren), SettingsMessageTree(I18n::Message::SymbolMultiplication, s_symbolChildren), SettingsMessageTree(I18n::Message::SymbolFunction, s_symbolFunctionChildren)};
 constexpr SettingsMessageTree s_modelFontChildren[2] = {SettingsMessageTree(I18n::Message::LargeFont), SettingsMessageTree(I18n::Message::SmallFont)};
 constexpr SettingsMessageTree s_accessibilityChildren[6] = {SettingsMessageTree(I18n::Message::AccessibilityInvertColors), SettingsMessageTree(I18n::Message::AccessibilityMagnify),SettingsMessageTree(I18n::Message::AccessibilityGamma),SettingsMessageTree(I18n::Message::AccessibilityGammaRed),SettingsMessageTree(I18n::Message::AccessibilityGammaGreen),SettingsMessageTree(I18n::Message::AccessibilityGammaBlue)};
 constexpr SettingsMessageTree s_contributorsChildren[17] = {SettingsMessageTree(I18n::Message::Developers), SettingsMessageTree(I18n::Message::QuentinGuidee), SettingsMessageTree(I18n::Message::DannySimmons), SettingsMessageTree(I18n::Message::JoachimLeFournis), SettingsMessageTree(I18n::Message::JeanBaptisteBoric), SettingsMessageTree(I18n::Message::MaximeFriess), SettingsMessageTree(I18n::Message::David), SettingsMessageTree(I18n::Message::DamienNicolet), SettingsMessageTree(I18n::Message::EvannDreumont), SettingsMessageTree(I18n::Message::SzaboLevente), SettingsMessageTree(I18n::Message::VenceslasDuet), SettingsMessageTree(I18n::Message::CharlotteThomas), SettingsMessageTree(I18n::Message::BetaTesters), SettingsMessageTree(I18n::Message::CyprienMejat), SettingsMessageTree(I18n::Message::TimeoArnouts), SettingsMessageTree(I18n::Message::LouisC), SettingsMessageTree(I18n::Message::LelahelHideux)};
diff --git a/apps/settings/main_controller.h b/apps/settings/main_controller.h
index 78c3d6bea..c7d2b758f 100644
--- a/apps/settings/main_controller.h
+++ b/apps/settings/main_controller.h
@@ -18,7 +18,8 @@ extern const Shared::SettingsMessageTree s_modelEditionModeChildren[2];
 extern const Shared::SettingsMessageTree s_modelFloatDisplayModeChildren[4];
 extern const Shared::SettingsMessageTree s_modelComplexFormatChildren[3];
 extern const Shared::SettingsMessageTree s_symbolChildren[4];
-extern const Shared::SettingsMessageTree s_modelMathOptionsChildren[5];
+extern const Shared::SettingsMessageTree s_symbolFunctionChildren[3];
+extern const Shared::SettingsMessageTree s_modelMathOptionsChildren[6];
 extern const Shared::SettingsMessageTree s_modelFontChildren[2];
 extern const Shared::SettingsMessageTree s_accessibilityChildren[6];
 extern const Shared::SettingsMessageTree s_contributorsChildren[17];
diff --git a/apps/settings/sub_menu/math_options_controller.cpp b/apps/settings/sub_menu/math_options_controller.cpp
index 5b4b42b7b..48c815e1f 100644
--- a/apps/settings/sub_menu/math_options_controller.cpp
+++ b/apps/settings/sub_menu/math_options_controller.cpp
@@ -66,6 +66,9 @@ void MathOptionsController::willDisplayCellForIndex(HighlightCell * cell, int in
     case I18n::Message::SymbolMultiplication:
       childIndex = (int)preferences->symbolofMultiplication();
       break;
+    case I18n::Message::SymbolFunction:
+      childIndex = (int)preferences->symbolofFunction();
+      break;      
     default:
       break;
   }
diff --git a/apps/settings/sub_menu/math_options_controller.h b/apps/settings/sub_menu/math_options_controller.h
index b888d45b9..47a59758d 100644
--- a/apps/settings/sub_menu/math_options_controller.h
+++ b/apps/settings/sub_menu/math_options_controller.h
@@ -16,7 +16,7 @@ public:
   int reusableCellCount(int type) override;
   void willDisplayCellForIndex(HighlightCell * cell, int index) override;
 private:
-  constexpr static int k_totalNumberOfCell = 6;
+  constexpr static int k_totalNumberOfCell = 7;
   MessageTableCellWithChevronAndMessage m_cells[k_totalNumberOfCell];
   PreferencesController m_preferencesController;
   DisplayModeController m_displayModeController;
diff --git a/apps/settings/sub_menu/preferences_controller.cpp b/apps/settings/sub_menu/preferences_controller.cpp
index 75d58532b..16aca64f4 100644
--- a/apps/settings/sub_menu/preferences_controller.cpp
+++ b/apps/settings/sub_menu/preferences_controller.cpp
@@ -7,6 +7,7 @@
 #include <poincare/code_point_layout.h>
 #include <poincare/fraction_layout.h>
 #include <poincare/vertical_offset_layout.h>
+#include <poincare/nth_root_layout.h>
 #include <algorithm>
 
 using namespace Poincare;
@@ -181,7 +182,22 @@ Layout PreferencesController::layoutForPreferences(I18n::Message message) {
       return CodePointLayout::Builder('*', k_layoutFont);
     case I18n::Message::SymbolMultiplicationAutoSymbol:
       return CodePointLayout::Builder(' ', k_layoutFont);
-    
+
+
+    // Symbol function
+    case I18n::Message::SymbolDefaultFunction:
+    {
+      return NthRootLayout::Builder(CodePointLayout::Builder('x'));
+    }
+    case I18n::Message::SymbolArgDefaultFunction:
+    {
+      return NthRootLayout::Builder(CodePointLayout::Builder('x'), CodePointLayout::Builder('2'));
+    }
+    case I18n::Message::SymbolArgFunction:
+    {
+      return NthRootLayout::Builder(CodePointLayout::Builder('x'), CodePointLayout::Builder('y'));
+    }
+
     // Result display
     case I18n::Message::DefaultResult:
     {
@@ -244,6 +260,8 @@ void PreferencesController::setPreferenceWithValueIndex(I18n::Message message, i
     GlobalPreferences::sharedGlobalPreferences()->setTempExamMode((GlobalPreferences::ExamMode)((uint8_t)valueIndex + 1));
   } else if (message == I18n::Message::SymbolMultiplication) {
     preferences->setSymbolMultiplication((Preferences::SymbolMultiplication)valueIndex);
+  } else if (message == I18n::Message::SymbolFunction) {
+    preferences->setSymbolofFunction((Preferences::SymbolFunction)valueIndex);  
   } else if (message == I18n::Message::FontSizes) {
     GlobalPreferences::sharedGlobalPreferences()->setFont(valueIndex == 0 ? KDFont::LargeFont : KDFont::SmallFont);
   }
@@ -271,6 +289,9 @@ int PreferencesController::valueIndexForPreference(I18n::Message message) const
   if (message == I18n::Message::SymbolMultiplication) {
     return (int)preferences->symbolofMultiplication();
   }
+  if (message == I18n::Message::SymbolFunction) {
+    return (int)preferences->symbolofFunction();
+  }
   if (message == I18n::Message::FontSizes) {
     return GlobalPreferences::sharedGlobalPreferences()->font() == KDFont::LargeFont ? 0 : 1;
   }
diff --git a/escher/src/layout_field.cpp b/escher/src/layout_field.cpp
index 60fc8490c..808da3cb8 100644
--- a/escher/src/layout_field.cpp
+++ b/escher/src/layout_field.cpp
@@ -364,7 +364,9 @@ bool LayoutField::handleEventWithText(const char * text, bool indentation, bool
   } else if (strcmp(text, Ion::Events::Power.text()) == 0) {
     cursor->addEmptyPowerLayout();
   } else if (strcmp(text, Ion::Events::Sqrt.text()) == 0) {
-    cursor->addEmptySquareRootLayout();
+    m_contentView.cursor()->addRoot();
+  } else if (strcmp(text, Ion::Events::Log.text()) == 0) {
+    m_contentView.cursor()->addLog();
   } else if (strcmp(text, Ion::Events::Square.text()) == 0) {
     cursor->addEmptySquarePowerLayout();
   } else if (strcmp(text, Ion::Events::EE.text()) == 0) {
diff --git a/poincare/include/poincare/layout_cursor.h b/poincare/include/poincare/layout_cursor.h
index e73b2295c..f43a142d0 100644
--- a/poincare/include/poincare/layout_cursor.h
+++ b/poincare/include/poincare/layout_cursor.h
@@ -109,7 +109,14 @@ public:
   void addEmptyExponentialLayout();
   void addEmptyMatrixLayout();
   void addEmptyPowerLayout();
+  void addRoot();
+  void addLog();
+  void addEmptyLog();
+  void addEmpty10Log();
+  void addEmptyArgLog();
   void addEmptySquareRootLayout();
+  void addEmptyRootLayout();
+  void addEmptyArgSquareRootLayout();
   void addEmptySquarePowerLayout();
   void addEmptyTenPowerLayout();
   void addFractionLayoutAndCollapseSiblings();
diff --git a/poincare/include/poincare/preferences.h b/poincare/include/poincare/preferences.h
index 4782754a0..e5ba9bea5 100644
--- a/poincare/include/poincare/preferences.h
+++ b/poincare/include/poincare/preferences.h
@@ -52,6 +52,11 @@ public:
     Star = 2,
     Auto = 3
   };
+  enum class SymbolFunction : uint8_t {
+    Default = 0,
+    ArgDefault = 1,
+    Arg = 2   
+  };
   enum class PythonFont : uint8_t {
     Large = 0,
     Small = 1
@@ -72,6 +77,8 @@ public:
   void setColorOfLED(LEDColor color) { m_colorOfLED = color; }
   SymbolMultiplication symbolofMultiplication() const { return m_symbolMultiplication; }
   void setSymbolMultiplication(SymbolMultiplication symbolofMultiplication) { m_symbolMultiplication = symbolofMultiplication; }
+  SymbolFunction symbolofFunction() const { return m_symbolFunction; }
+  void setSymbolofFunction(SymbolFunction symbolofFunction) { m_symbolFunction = symbolofFunction; }
   PythonFont pythonFont() const { return m_pythonFont; }
   void setPythonFont(PythonFont pythonFont) { m_pythonFont = pythonFont; }
   const KDFont * KDPythonFont() const { return (m_pythonFont == PythonFont::Small) ? KDFont::SmallFont : KDFont::LargeFont; }
@@ -83,6 +90,7 @@ private:
   uint8_t m_numberOfSignificantDigits;
   LEDColor m_colorOfLED;
   SymbolMultiplication m_symbolMultiplication;
+  SymbolFunction m_symbolFunction;
   PythonFont m_pythonFont;
 };
 
diff --git a/poincare/src/layout_cursor.cpp b/poincare/src/layout_cursor.cpp
index e62be6e29..21d289b38 100644
--- a/poincare/src/layout_cursor.cpp
+++ b/poincare/src/layout_cursor.cpp
@@ -3,6 +3,7 @@
 #include <poincare/empty_layout.h>
 #include <poincare/fraction_layout.h>
 #include <poincare/horizontal_layout.h>
+#include <poincare/layout_helper.h>
 #include <poincare/layout.h>
 #include <poincare/left_parenthesis_layout.h>
 #include <poincare/matrix_layout.h>
@@ -108,6 +109,90 @@ void LayoutCursor::addEmptyMatrixLayout() {
   m_position = Position::Right;
 }
 
+void LayoutCursor::addLog() {
+  Preferences * preferences = Preferences::sharedPreferences();
+  switch((int)preferences->symbolofFunction()){
+    case 1:
+      addEmpty10Log();
+      break;
+    case 2:
+      addEmptyArgLog();
+      break;
+    default:
+      addEmptyLog();
+      break;
+  }
+}
+
+void LayoutCursor::addEmptyLog() {
+  HorizontalLayout child1 = HorizontalLayout::Builder(EmptyLayout::Builder());
+  HorizontalLayout child2 = HorizontalLayout::Builder(EmptyLayout::Builder());
+  Layout logLayout = LayoutHelper::String("log", 3);
+  HorizontalLayout resultLayout = static_cast<HorizontalLayout &>(logLayout);
+  //VerticalOffsetLayout offsetLayout = VerticalOffsetLayout::Builder(child2, VerticalOffsetLayoutNode::Position::Subscript);
+  //resultLayout.addChildAtIndex(offsetLayout, resultLayout.numberOfChildren(), resultLayout.numberOfChildren(), nullptr);
+  resultLayout.addChildAtIndex(HorizontalLayout::Builder(
+    LeftParenthesisLayout::Builder(),
+    child1,
+    RightParenthesisLayout::Builder()
+    
+  ), resultLayout.numberOfChildren(), resultLayout.numberOfChildren(), nullptr);
+
+  m_layout.addSibling(this, resultLayout, true);
+  LayoutCursor::moveLeft(nullptr, false);
+}
+
+void LayoutCursor::addEmpty10Log() {
+  HorizontalLayout child1 = HorizontalLayout::Builder(EmptyLayout::Builder());
+  HorizontalLayout child2 = HorizontalLayout::Builder(CodePointLayout::Builder('1'),CodePointLayout::Builder('0'));
+  Layout logLayout = LayoutHelper::String("log", 3);
+  HorizontalLayout resultLayout = static_cast<HorizontalLayout &>(logLayout);
+  VerticalOffsetLayout offsetLayout = VerticalOffsetLayout::Builder(child2, VerticalOffsetLayoutNode::Position::Subscript);
+  resultLayout.addChildAtIndex(offsetLayout, resultLayout.numberOfChildren(), resultLayout.numberOfChildren(), nullptr);
+  resultLayout.addChildAtIndex(HorizontalLayout::Builder(
+    LeftParenthesisLayout::Builder(),
+    child1,
+    RightParenthesisLayout::Builder()
+    
+  ), resultLayout.numberOfChildren(), resultLayout.numberOfChildren(), nullptr);
+  
+  m_layout.addSibling(this, resultLayout, true);
+  LayoutCursor::moveLeft(nullptr, false);
+}
+
+void LayoutCursor::addEmptyArgLog() {
+  HorizontalLayout child1 = HorizontalLayout::Builder(EmptyLayout::Builder());
+  HorizontalLayout child2 = HorizontalLayout::Builder(EmptyLayout::Builder());
+  Layout logLayout = LayoutHelper::String("log", 3);
+  HorizontalLayout resultLayout = static_cast<HorizontalLayout &>(logLayout);
+  VerticalOffsetLayout offsetLayout = VerticalOffsetLayout::Builder(child2, VerticalOffsetLayoutNode::Position::Subscript);
+  resultLayout.addChildAtIndex(offsetLayout, resultLayout.numberOfChildren(), resultLayout.numberOfChildren(), nullptr);
+  resultLayout.addChildAtIndex(HorizontalLayout::Builder(
+    LeftParenthesisLayout::Builder(),
+    child1,
+    RightParenthesisLayout::Builder()
+    
+  ), resultLayout.numberOfChildren(), resultLayout.numberOfChildren(), nullptr);
+  
+  m_layout.addSibling(this, resultLayout, true);
+  LayoutCursor::moveLeft(nullptr, false);
+}
+
+void LayoutCursor::addRoot() {
+  Preferences * preferences = Preferences::sharedPreferences();
+  switch((int)preferences->symbolofFunction()){
+    case 1:
+      addEmptyArgSquareRootLayout();
+      break;
+    case 2:
+      addEmptyRootLayout();
+      break;
+    default:
+      addEmptySquareRootLayout();
+      break;
+  }
+}
+
 void LayoutCursor::addEmptySquareRootLayout() {
   // TODO: add a horizontal layout only if several children
   HorizontalLayout child1 = HorizontalLayout::Builder(EmptyLayout::Builder());
@@ -118,6 +203,28 @@ void LayoutCursor::addEmptySquareRootLayout() {
   ((Layout *)&newChild)->collapseSiblings(this);
 }
 
+void LayoutCursor::addEmptyRootLayout() {
+  // TODO: add a horizontal layout only if several children
+  HorizontalLayout child1 = HorizontalLayout::Builder(EmptyLayout::Builder());
+  HorizontalLayout child2 = HorizontalLayout::Builder(EmptyLayout::Builder());
+  NthRootLayout newChild = NthRootLayout::Builder(child1, child2);
+  m_layout.addSibling(this, newChild, false);
+  m_layout = newChild.childAtIndex(0);
+  m_position = Position::Right;
+  ((Layout *)&newChild)->collapseSiblings(this);
+}
+
+void LayoutCursor::addEmptyArgSquareRootLayout() {
+  // TODO: add a horizontal layout only if several children
+  HorizontalLayout child1 = HorizontalLayout::Builder(EmptyLayout::Builder());
+  HorizontalLayout child2 = HorizontalLayout::Builder(CodePointLayout::Builder('2'));
+  NthRootLayout newChild = NthRootLayout::Builder(child1, child2);
+  m_layout.addSibling(this, newChild, false);
+  m_layout = newChild.childAtIndex(0);
+  m_position = Position::Right;
+  ((Layout *)&newChild)->collapseSiblings(this);
+}
+
 void LayoutCursor::addEmptyPowerLayout() {
   VerticalOffsetLayout offsetLayout = VerticalOffsetLayout::Builder(EmptyLayout::Builder(), VerticalOffsetLayoutNode::Position::Superscript);
   privateAddEmptyPowerLayout(offsetLayout);
diff --git a/poincare/src/preferences.cpp b/poincare/src/preferences.cpp
index b6e3efb32..3cd35a5b6 100644
--- a/poincare/src/preferences.cpp
+++ b/poincare/src/preferences.cpp
@@ -15,6 +15,7 @@ Preferences::Preferences() :
   m_numberOfSignificantDigits(PrintFloat::k_numberOfPrintedSignificantDigits),
   m_colorOfLED(Preferences::LEDColor::Red),
   m_symbolMultiplication(Preferences::SymbolMultiplication::Auto),
+  m_symbolFunction(Preferences::SymbolFunction::Default),
   m_pythonFont(Preferences::PythonFont::Large)
 {}