In computer programming, a constant is a value that cannot be altered by the program during normal execution, i.e., the value is constant. This is contrasted with a variable, which is an identifier with a value that can be changed during normal execution, i.e., the value is variable.
What is a constant and a variable?
Algebra is the branch of mathematics that uses letters to represent numbers. Usually, the letters are called variables, since they are unknown and can change or vary. Some letters can be designated as constants, since their values remain constant, once assigned.
What are constants used for in a spreadsheet?
A bar at the top of the Excel window that you use to enter or edit values or formulas in cells or charts. Displays the constant value or formula stored in the active cell. A tool that helps you create or edit a formula and also provides information about functions and their arguments.