[apps/probability] Comments to explain the 0.001 precision is proba

Change-Id: Id5618802f9a08967b2fa0d68b35ff2a4f0b5a116

apps/probability/calculation/calculation.h

@@ -17,6 +17,9 @@ public:
   virtual float lowerBound();
   virtual float upperBound();
 protected:
+  /* Parameters in probability application are rounded to 3 decimals. This is
+   * due to the limited precision of some calculation (e. g. standard normal
+   * cumulative distributive function or inverse). */
   constexpr static float k_precision = 0.001f;
   virtual void compute(int indexKnownElement) = 0;
   Law * m_law;

apps/probability/calculation/finite_integral_calculation.cpp

@@ -32,7 +32,6 @@ const char * FiniteIntegralCalculation::legendForParameterAtIndex(int index) {
 
 void FiniteIntegralCalculation::setParameterAtIndex(float f, int index) {
   assert(index >= 0 && index < 3);
-/* Parameters in probability application are rounder to 3 decimals */
   float rf = roundf(f/k_precision)*k_precision;
   if (index == 0) {
     m_lowerBound = rf;

apps/probability/calculation/left_integral_calculation.cpp

@@ -28,7 +28,6 @@ const char * LeftIntegralCalculation::legendForParameterAtIndex(int index) {
 
 void LeftIntegralCalculation::setParameterAtIndex(float f, int index) {
   assert(index >= 0 && index < 2);
-  /* Parameters in probability application are rounder to 3 decimals */
   float rf = roundf(f/k_precision)*k_precision;
   if (index == 0) {
     m_upperBound = rf;

apps/probability/calculation/right_integral_calculation.cpp

@@ -28,7 +28,6 @@ const char * RightIntegralCalculation::legendForParameterAtIndex(int index) {
 
 void RightIntegralCalculation::setParameterAtIndex(float f, int index) {
   assert(index >= 0 && index < 2);
-/* Parameters in probability application are rounder to 3 decimals */
   float rf = roundf(f/k_precision)*k_precision;
   if (index == 0) {
     m_lowerBound = rf;