// A simple program to test precision values for floating point numbers #include #include #include #include using namespace std; int main() { double sensorReading1 = 0.2; double sensorReading2 = 0.3; double sensorReading3 = 0.299999; double sensorReading4 = 1/3; double sensorReading5 = 0.20000113241; cout << "Sensor Reading #1 using just cout: " << sensorReading1 << endl << "Sensor Reading #2 using just cout: " << sensorReading2 << endl << "Sensor Reading #3 using just cout: " << sensorReading3 << endl << "Sensor Reading #4 using just cout: " << sensorReading4 << endl << "Sensor Reading #5 using just cout: " << sensorReading5 << "\n" << endl; cout << setprecision(25) << "Sensor Reading #1 using precision: " << sensorReading1 << endl << "Sensor Reading #2 using precision: " << sensorReading2 << endl << "Sensor Reading #3 using precision: " << sensorReading3 << endl << "Sensor Reading #4 using precision: " << sensorReading4 << endl << "Sensor Reading #5 using precision: " << sensorReading5 << endl; double targetValue = 0.20000; const double PRECISION_TOLERANCE = 0.0001; double errorMargin = fabs(sensorReading5 - targetValue); if (errorMargin < PRECISION_TOLERANCE) { cout << setprecision(10) << "\nTarget Value Is:" << targetValue << endl << "Sensor Reading Is: " << sensorReading5 << endl << "Precision Tolerance Is: " << PRECISION_TOLERANCE << endl << "\nSENSOR READING ACCEPTED: The Error margin of '" << errorMargin << "' is within tolerance" << endl; } else { cout << setprecision(10) << "\nTarget Value Is:" << targetValue << endl << "Sensor Reading Is: " << sensorReading5 << endl << "Precision Tolerance Is: " << PRECISION_TOLERANCE << endl << "\nSENSOR READING DECLINED: The Error margin of '" << errorMargin << "' is out of tolerance" << endl; } return 0; }

Floating Point Number Verification