A formula is a group of letters numbers or other symbols which represents a scientific or mathematical rule. Definition and Formula Interquartile range is defined as the difference between the upper and lower quartile values in a set of data. A rule that numerically describes the relationship between two or more variables.
What the definition is telling us is that for any number varepsilon 0 that we pick we can go to our graph and sketch two horizontal lines at L varepsilon and L - varepsilon as shown on the graph above.
An equals sign two or more variables x y etc Example. Then somewhere out there in the world is another number delta 0 which we will need to determine that will allow us to add in two vertical lines to our graph at a. Mathematics A statement especially an equation of a fact rule principle or other logical relation. He finds it extremely difficult to formulate his new theory.