Floating-Point Calculations

Introduction

The modulus operator, %, can't be used with floating-point operands.

You can use the prefix and postfix increment and decrement operators, ++ and -- to a floating-point variable: the variable will be incremented or decremented by 1.0.

Demo Code

#include <iostream>

int main()//ww w.  j  av a  2 s. com
{
    const double pi {3.1414926};     // Circumference of a circle divided by its diameter
    double a {0.75};                 // Thickness of a pizza
    double z {5.5};                  // Radius of a pizza
    double volume {};                // Volume of pizza - to be calculated
    volume = pi*z*z*a;

    std::cout << "volume:" << volume << std::endl;
}

Floating-Point Calculations - C++ Data Type

Introduction

Demo Code

Result

Related Tutorials