A variable.
A letter used to represent numbers is called a variable; the most common ones are 'x' and 'y'.
That's called a variable.
variable
A variable. In computer programming, you can have a single variable for a group of related numbers - in this case, you speak about an array.
variable
variable
A variable! like x!
A symbol, usually a letter, that is used to represent 1 or more numbers
it is called a variable not a letter
variable
There are lots of different ways. One is to represent them as points in space of two or more dimensions.
a letter or symbol that stands for one or more numbers is a