
Program Description
 Calculate the 4 parameters of an arc of circle knowing two of them.
 Reduction of conicals of equation: ax^2+2bxy+cy^2+2dx+2ey+f=0
 Seek the equation of a conical passing through five points
 Position of planets (ascent and declination)
 Calculate the internal surface of a polygon defined by n points
 Given three side or angle elements of a triangle out of six, this program
will determine the missing elements and calculate the surface.
