cofunction

(redirected from Co-function)
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co·func·tion

 (kō′fŭngk′shən)
n.
The trigonometric function of the complement of an angle: The tangent is the cofunction of the cotangent.

cofunction

(ˌkəʊˈfʌŋkʃən)
n
1. a joint function
2. (Mathematics) maths the trigonometric function of the complement of a given angle

co•func•tion

(ˈkoʊˌfʌŋk ʃən)

n.
the trigonometric function of the complement of a given angle or arc: cosθ is the cofunction of sinθ.
[1905–10]
References in periodicals archive ?
74 in the expression for the sine regression and help them to realize that this just represents the co-function identity: sin(x + [pi]/2) cos x.
All our inclinations, disinclinations, likes and dislikes, discourse, deeds--both good and evil--stem from the co-function of these contrasting mental forces.
This means that the trigonometric function of that part of the triangle must be changed to the co-function in Napier's rules (i.