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C++ Data Types
course content

Contenido del Curso

C++ Data Types

C++ Data Types

1. Introduction
OverviewArithmetic OperationsDivision int and doubleMath in C++Specifying a Type
2. Numerical Data Types
IntegersUsing IntegersType modifierFloatDoubleNumerical Data Types Summary
3. Text Data Type
CharStringIndexing a StringWorking With StringChanging The String PracticeFinding Text in a StringStrings in Memory
4. Other Data Types and Concepts
BooleanBoolean ExpressionsVoidAuto UnsignedImplicit Type ConversionExplicit Type Conversion

bookArithmetic Operations

Let's start with a very basics. But don't skip this section because even here you might find something usefull that then will save you hours of researching.

Setting the precision

As you already should know you can perform basic data manipulation using arithmetic operators such as addition (+), subtraction (-), division (/), and multiplication (*). Additionally, the modulus operator (%) calculates the remainder of a division.

cpp

main

copy

              
123456789

            
#include <iostream>
#include <iomanip>

int main()
{
    // Uncomment to see the difference
    // std::cout << std::fixed;
    std::cout << std::setprecision(5) << 15.125 * 0.8309 << std::endl;
}

In the example above, floating-point results are sometimes obtained during calculations. You can manage the precision of these results using std::setprecision and std::fixed to control how setprecision functions.

Note

Without std::fixed, std::setprecision controls the total number of digits displayed, including both before and after the decimal points. With std::fixed, the number is displayed in fixed-point notation, keeping the decimal point in a fixed position.

Tarea

  • Include <iomanip> to be able to set precision.
  • Follow the comments to set a precision.
  • Calculate and output the equivalent of 5 miles in kilometers rounding to one decimal place.

Note

To convert 5 miles to kilometers, you would multiply the number of miles by the conversion factor (1.60934).

Once you've completed this task, click the button below the code to check your solution.

Switch to desktopCambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones
¿Todo estuvo claro?

¿Cómo podemos mejorarlo?

¡Gracias por tus comentarios!

Sección 1. Capítulo 2
toggle bottom row

bookArithmetic Operations

Let's start with a very basics. But don't skip this section because even here you might find something usefull that then will save you hours of researching.

Setting the precision

As you already should know you can perform basic data manipulation using arithmetic operators such as addition (+), subtraction (-), division (/), and multiplication (*). Additionally, the modulus operator (%) calculates the remainder of a division.

cpp

main

copy

              
123456789

            
#include <iostream>
#include <iomanip>

int main()
{
    // Uncomment to see the difference
    // std::cout << std::fixed;
    std::cout << std::setprecision(5) << 15.125 * 0.8309 << std::endl;
}

In the example above, floating-point results are sometimes obtained during calculations. You can manage the precision of these results using std::setprecision and std::fixed to control how setprecision functions.

Note

Without std::fixed, std::setprecision controls the total number of digits displayed, including both before and after the decimal points. With std::fixed, the number is displayed in fixed-point notation, keeping the decimal point in a fixed position.

Tarea

  • Include <iomanip> to be able to set precision.
  • Follow the comments to set a precision.
  • Calculate and output the equivalent of 5 miles in kilometers rounding to one decimal place.

Note

To convert 5 miles to kilometers, you would multiply the number of miles by the conversion factor (1.60934).

Once you've completed this task, click the button below the code to check your solution.

Switch to desktopCambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones
¿Todo estuvo claro?

¿Cómo podemos mejorarlo?

¡Gracias por tus comentarios!

Sección 1. Capítulo 2
toggle bottom row

bookArithmetic Operations

Let's start with a very basics. But don't skip this section because even here you might find something usefull that then will save you hours of researching.

Setting the precision

As you already should know you can perform basic data manipulation using arithmetic operators such as addition (+), subtraction (-), division (/), and multiplication (*). Additionally, the modulus operator (%) calculates the remainder of a division.

cpp

main

copy

              
123456789

            
#include <iostream>
#include <iomanip>

int main()
{
    // Uncomment to see the difference
    // std::cout << std::fixed;
    std::cout << std::setprecision(5) << 15.125 * 0.8309 << std::endl;
}

In the example above, floating-point results are sometimes obtained during calculations. You can manage the precision of these results using std::setprecision and std::fixed to control how setprecision functions.

Note

Without std::fixed, std::setprecision controls the total number of digits displayed, including both before and after the decimal points. With std::fixed, the number is displayed in fixed-point notation, keeping the decimal point in a fixed position.

Tarea

  • Include <iomanip> to be able to set precision.
  • Follow the comments to set a precision.
  • Calculate and output the equivalent of 5 miles in kilometers rounding to one decimal place.

Note

To convert 5 miles to kilometers, you would multiply the number of miles by the conversion factor (1.60934).

Once you've completed this task, click the button below the code to check your solution.

Switch to desktopCambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones
¿Todo estuvo claro?

¿Cómo podemos mejorarlo?

¡Gracias por tus comentarios!

Let's start with a very basics. But don't skip this section because even here you might find something usefull that then will save you hours of researching.

Setting the precision

As you already should know you can perform basic data manipulation using arithmetic operators such as addition (+), subtraction (-), division (/), and multiplication (*). Additionally, the modulus operator (%) calculates the remainder of a division.

cpp

main

copy

              
123456789

            
#include <iostream>
#include <iomanip>

int main()
{
    // Uncomment to see the difference
    // std::cout << std::fixed;
    std::cout << std::setprecision(5) << 15.125 * 0.8309 << std::endl;
}

In the example above, floating-point results are sometimes obtained during calculations. You can manage the precision of these results using std::setprecision and std::fixed to control how setprecision functions.

Note

Without std::fixed, std::setprecision controls the total number of digits displayed, including both before and after the decimal points. With std::fixed, the number is displayed in fixed-point notation, keeping the decimal point in a fixed position.

Tarea

  • Include <iomanip> to be able to set precision.
  • Follow the comments to set a precision.
  • Calculate and output the equivalent of 5 miles in kilometers rounding to one decimal place.

Note

To convert 5 miles to kilometers, you would multiply the number of miles by the conversion factor (1.60934).

Once you've completed this task, click the button below the code to check your solution.

Switch to desktopCambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones
Sección 1. Capítulo 2
Switch to desktopCambia al escritorio para practicar en el mundo realContinúe desde donde se encuentra utilizando una de las siguientes opciones
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