formulae is the plural of formula

created by Zulu One

(idea) by Zulu One (6.8 y) (print) ? (I like it!) 1 C! Thu May 25 2000 at 19:04:54

Yes it is, the same way that vertices is the plural of vertex, matrices is the plural of matrix, bacteria is the plural of bacterium, data is the plural of datum, and media is the plural of medium.
Please you make sure that you are aware of this fact.

Don't make me tell you this more than once.

(idea) by flyingroc (1.3 y) (print) ? (I like it!) Sun Oct 22 2000 at 2:48:35

"Formulas", of course, is also a perfectly acceptable plural form of formula". Ask Merriam-Webster. Or Webster 1913, for that matter. "Vertexes" is also an acceptable plural form of vertex.

(idea) by izubachi (3.4 d) (print) ? (I like it!) Sun Oct 22 2000 at 3:26:34

The Latin plural would most certainly be formulae. However, we don't speak Latin, we speak English. So, the choice of plural is left to the speaker at hand, whether one wants to stick with the Latin origins or comply with standard English plurals. Neither of them is wrong, English does not have some large official institution dictating its exact form, as far as I know.

printable version
chaos

How to find the nth term of a number sequence	English may be a "living language," but Latin is not -- so get it right.	Plurals of words ending in O	common geometric formulas
English is a living language	Dune : appendixes : Terminology of the Imperium	Quaternion	Mary-Kate and Ashley Olsen
Seymour Duncan	tie	Devolution in Scotland	formulae
Abigail and Brittany Hensel	interest	Cosė fan Tutte	Mary-Kate Olsen
Ashley Olsen	Cubic equation	Confusion	Olsen Twins
formula	Minuscule

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