Similar to キーペルト円錐曲線

Schiffler point

Spieker circle

Soddy circles of a triangle

Soddy line

Cevian

Catalogue of Triangle Cubics

Circumgon

Encyclopedia of Triangle Centers

Nine-point conic

Triangle conic

Steiner inellipse

Circumconic and inconic

0

1

2

3

4

5

6

7

8

9

Einstein's constant

Artin reciprocity