[ koh-fuhngk-shuhn ]
See synonyms for cofunction on
  1. the function of the complement of a given angle or arc: cosθ is the cofunction of sinθ.

Origin of cofunction

First recorded in 1905–10; co- + function

Words Nearby cofunction Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Scientific definitions for cofunction


[ fŭngk′shən ]

  1. The trigonometric function of the complement of an angle. The tangent, for example, is the cofunction of the cotangent.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.