Type Conversion: from float to double : float « Data Types « C++ Tutorial






  1. C++ Tutorial
  2. Data Types
  3. float
#include <iostream>   
using namespace std;   
  
int main() {   
   int count = 7;   
   float avgWeight = 155.5F;   
  
   double totalWeight = count * avgWeight;   
   cout << "totalWeight=" << totalWeight << endl;   
   return 0;   
}








2.9.float
2.9.1.float point constant number
2.9.2.float number array
2.9.3.Read float point numbers from keyboard and save them to a float array
2.9.4.Type Conversion: from float to double
2.9.5.constant floats, floating point variables
2.9.6.Local Float Variables and Parameters: convert the temperature in Fahrenheit to Celsius
2.9.7.Display decimal and float with format
2.9.8.Define function whose parameter and return value are both float
2.9.9.Tests whether two floating-point numbers are approximately equal.
2.9.10.Controlling the printing of trailing zeros and decimal points for floating-point values.
2.9.11.cin handles double and float type values