x or any other variable
It is a variable and is expressed as a letter as for example it could be x or y
The symbol is called DELTA and looks like a triangle. -----> Δ <----
A variable
a variable
In maths the symbols x and n are usually used to represent an unknown quantity. These may be referred to as a variable.
x
eat it i know you want it
x or any other variable
An unknown number represented by a letter or symbol is a variable.
It is called a variable.
It is a variable and is expressed as a letter as for example it could be x or y
Nobody 'invented' it... letters are often used in maths to signify an unknown quantity.
It is called a variable.
In mathematics, a variable is a symbol that represents a quantity that can change or vary in a given problem or equation. Variables can be used to denote unknown values or to represent values that depend on other factors. They are commonly denoted by letters such as x, y, or z.
algebraic expression
The symbol is called DELTA and looks like a triangle. -----> Δ <----