# Flowgorithm Constants

# Overview

In this tutorial, we will learn about Flowgorithm Constants. Flowgorithm predefined constants

allow programmers to use them directly in the flowcharts, without the need to declare and assign values to them.

Unlike Flowgorithm variables, the value of the constant doesn’t change. The programmer cannot re-define or assign any other values to a constant.

## Flowgorithm Constants

Flowgorithm provides three predefined constants. They are reserved words and programmers cannot declare them as identifiers in the flowchart. There are as follows:

Flowgorithm Constant |
Description |

Pi |
Mathematical constant ( π = 3.14159265358979 ). This constant is normally used in mathematical calculations.
pi is a mathematical constant that denotes the ratio of the circle’s circumference to its diameter. It is an irrational number that cannot be expressed as a ratio of two integers. |

True |
Boolean value for True. |

False |
Boolean value for False.
True/False are used to initialize Boolean variables and flags in the flowcharts. |

## Example

Sample flowchart that displays the value of the pi to the output console screen. We can use the mathematical Greek symbol *π* or *pi*.

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**Flowgorithm Tutorials**

Flowgorithm flowchart tutorials on this website:

https://www.testingdocs.com/flowgorithm-flowchart-tutorial/

**Flowgorithm Website**

For more information on the Flowgorithm tool, please visit the official website at: