[8] Line PP' : A

[9] Intersection point Q = tr(P)*PP' : Q = (1/P) x (P x 1/P).

[10] The intersection Q' of line PP' and ~P : Q' = P x (P x 1/P) .

[11] The tripole tr(PP') of line PP' : tr(PP') = 1/A , is an intersection point of conics c

[12] The dual point ~PP' : A = 1/P x P is the intersection of the tripolars : tr(P) and tr(P').

[13] The isotomic t(Q) of Q : t(Q) = 1/Q : (1/Q)

[14] The isotomic of Q' : t(Q') = 1/Q' : (1/Q')

[15] Collinearity (tr(PP'), t(Q'), P') : (1/A x 1/Q')

[16] The isotomic t(PP') of line PP' : 1/A = H

[17] The tripolar tr(Q) of Q : 1/Q = D

[18] Collinearity (D,P,tr(PP')) : D

[19] Intersection of the tangent at the tripole tr(PP') of c

[20] Point S is the pole with respect to c

[21] Collinearity (H', 1/Q, 1/P) on line t(tr(S)) : S

[22] Line C

[23] Collinearity on tr(Q') : (1/Q')

[24] Intersection T of lines tr(Q) and tr(Q') : T = 1/Q x 1/Q' .

[25] Collinearities on ~T : T

IsotomicChart.html

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