Difference between Arctan and Arctangent

What is the difference between Arctan and Arctangent?

Arctan as an abbreviation is the inverse tangent function while Arctangent as a noun is any of several single-valued or multivalued functions that are inverses of the tangent function. symbol: arctan, tan-1

We hope you now know whether to use Arctan or Arctangent in your sentence.