It is called a variable.
VARIABLE. When this variable has a fixed number assigned to it and does not change, it is called a "fixed variable".
a variable
The symbol that represents change is delta. (It looks like a little triangle before the unit) ..../\..... ../....\..... /____\....
variable
X is the symbol for multiplication, as in 2X2=4 X (or any other letter) is often used to represent an unknown quantity.
It is called a variable.
A variable
VARIABLE. When this variable has a fixed number assigned to it and does not change, it is called a "fixed variable".
The symbol is called DELTA and looks like a triangle. -----> Δ <----
Variable
x or any other variable
In maths the symbols x and n are usually used to represent an unknown quantity. These may be referred to as a variable.
Variable
The "s" on top of an "s" symbol is typically used in mathematics to represent integration and is called the integral symbol. It is used to denote the process of finding the area under a curve or the accumulation of a quantity over an interval.
variable
a variable
The symbol for an average speed is a bold v with a line over the top of it. This is the quantity of change in position over change in time.