Trilinear coordinates for the Clawson point are

tan A : tan B : tan C.

For a reference to Clawson's description of this point, by its trilinears, click on his name highlighted below. The construction given here first appears in

** R. Lyness and G. R. Veldkamp**, Problem 682 and Solution, *Crux Mathematicorum* 9 (1983) 23-24.

Initially, the point was thought to be new in 1983 and was called the *crucial point* after the journal in which it appeared.

(For a quick lesson on trilinears, click on TRILINEAR COORDINATES.)

To John Wentworth Clawson

To Triangle Centers (with access to a list of classical centers)

To Clark Kimberling Home Page