A constant is a value that does not change. Here are some examples:
* In mathematics:
* The number pi (π) is a constant, approximately equal to 3.14159.
* In the equation y = 2x + 5, the number 5 is a constant because it doesn't change regardless of the value of x.
* In programming:
* Variables can be declared as constants, meaning their value cannot be modified after they are initialized. This helps make your code more reliable and predictable.
* In everyday language:
* We might say the speed of light is a constant, as it doesn't change.
* The price of a product might be considered constant if it remains the same for a certain period.
Let me know if you'd like more details on any of these examples or have other questions about constants!