(へんすう)

へんすう
noun
variable
1. variable
A quantity that can change or take different values.
x変数(へんすう)する
Let x be a variable.
Assign a value to the variable.
In this experiment, temperature is the variable.

変数(へんすう) refers to a quantity that can change or take different values. Used in mathematics, statistics, and programming.

IN MATHEMATICS/STATISTICS:

IN PROGRAMMING:

CONTRAST:
定数(ていすう) (constant) is a value that does not change, the opposite of a variable.