... Circles and conics 15710.1 Sequences of intersecting circles of unit radius 15710.2 Simson lines and Simson conics 15910.3 The nine-point conic 16111 Finite geometries 16311.1 Finite projective ... The points where the incircle touches BC, CA,andAB, respec-tively.T The nine-point centre.S The symmedian point of the triangle ABC. J The centre of mass of a uniform wire framework in the ... variables u, v,andw. The transformed equation can then be solved to fin d w in terms of u and v. Finally, by eliminating w, the variables a, b,andc can be expressedInteger-sided triangles5 in terms...