variable
In maths the symbols x and n are usually used to represent an unknown quantity. These may be referred to as a variable.
A variable.
b
algebraic expression
Variable
An unknown number represented by a letter or symbol is a variable.
A variable
variable
variable
In maths the symbols x and n are usually used to represent an unknown quantity. These may be referred to as a variable.
A variable.
b
The symbol Pb stands for the chemical element Lead, which is a heavy metal with the atomic number 82.
algebraic expression
It is Hz, which stands for Hertz.
"n" stands for an unknown number.