Constant

Annotated mathematical expression showing the components of an algebraic equation: 3x + 2 = 5, with labels indicating the coefficient, variable, constant, and operator.
Visual representation of an algebraic equation highlighting the role of a constant in the structure of mathematical expressions.

Table of Contents

What is a Constant?

A constant is a fixed numerical value that does not contain any variables. It is a term used to represent a specific, unchanging quantity in mathematical expressions or equations.

Examples of Constants

  1. 5, The number 5 is a constant. It does not change and has a fixed value.
  2. –3,  Similarly, –3 is a constant. It is a specific, unchanging numerical value.
  3. \pi, The mathematical constant \pi (pi) represents the ratio of a circle’s circumference to its diameter and is approximately 3.14159.
  4. e, The mathematical constant e is the base of the natural logarithm and is approximately 2.71828.
  5. \frac{1}{2}, The fraction \frac{1}{2} is a constant, representing the numerical value of one-half.

Related Links

Arithmetic Sequence

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Base (Algebra)

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Coefficient

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Equation

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