The Jerabek center is the center of the Jerabek hyperbola. It is Kimberling center X_125, which has equivalent triangle center functions α_125 | = | cos A sin^2(B - C) α_125 | = | (c cos C - b cos B)^2/(cos A) α_125 | = | b c(b^2 + c^2 - a^2)(b^2 - c^2) (Kimberling 1998, p. 87).
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