formula

英['fɔːmjʊlə] 美['fɔrmjələ]

1. a group of symbols that make a mathematical statement

2. directions for making something

3. a conventionalized statement expressing some fundamental principle

4. a representation of a substance using symbols for its constituent elements

5. something regarded as a normative example;

"the convention of not naming the main character"

"violence is the rule not the exception"

"his formula for impressing visitors"

6. a liquid food for infants

7. (mathematics) a standard procedure for solving a class of mathematical problems;

"he determined the upper bound with Descartes' rule of signs"

"he gave us a general formula for attacking polynomials"