Table P-X
Perspectors.
Points available at the Kimberling's Encyclopedia ETC.
The ETC version: The 5549 points version of 2013.
The "Discoverer" database version: October 2013.
Last update: 2014-03-18

      Role     Kimberling Notation  
  1     Perspector and Homothetic Center of the Euler Triangle of the Incenter and the Inner Yff Triangle     X(1)   Incenter  
  2     Perspector and Homothetic Center of the Euler Triangle of the Circumcenter and the Inner Yff Triangle     X(56)   External Center of Similitude of Circumcircle and Incircle  
  3     Perspector and Homothetic Center of the Euler Triangle of the Orthocenter and the Inner Yff Triangle     X(1479)   Center of the Outer Johnson-Yff Circle  
  4     Perspector and Homothetic Center of the Euler Triangle of the Nine-Point Center and the Inner Yff Triangle     X(496)   Harmonic Conjugate of the Johnson Midpoint  
  5     Perspector and Homothetic Center of the Euler Triangle of the Symmedian Point and the Inner Yff Triangle     X(613)    
  6     Perspector and Homothetic Center of the Euler Triangle of the Spieker Center and the Inner Yff Triangle     X(1210)    
  7     Perspector and Homothetic Center of the Euler Triangle of the de Longchamps Point and the Inner Yff Triangle     X(4299)    
  8     Perspector and Homothetic Center of the Euler Triangle of the Bevan Point and the Inner Yff Triangle     X(46)    
  9     Perspector and Homothetic Center of the Euler Triangle of the Center of the Fuhrmann Circle and the Inner Yff Triangle     X(1837)