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It is called a variable.
A math expression is a symbol or combination of symbols that represents a quantity or a relationship between quantities.
it's the symbol for infinity
VARIABLE. When this variable has a fixed number assigned to it and does not change, it is called a "fixed variable".
You add and then solve the math
A variable
Variable
It is called a variable.
It is called a variable.
A math expression is a symbol or combination of symbols that represents a quantity or a relationship between quantities.
it's the symbol for infinity
three dots represents the therefore symbol
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.
Nobody 'invented' it... letters are often used in maths to signify an unknown quantity.
VARIABLE. When this variable has a fixed number assigned to it and does not change, it is called a "fixed variable".
Scalar quantities are easier to deal with, the math is simpler. But if you have quantities that include both a magnitude and a direction, you really have no choice but using a vector quantity, to represent them correctly.