13.16.3 Checking if four points are concyclic in the plane: is_concyclic
See Section 14.13.7 for checking for concyclicity in
three-dimensional geometry.
The is_concyclic command determines whether or not
points are cyclic.
-
is_concyclic takes one argument:
L, a list or sequence of points.
- is_concyclic(L) returns 1 if the points
in L all lie on the same circle, and returns 0 otherwise.
Examples.
-
Input:
is_concyclic(1+i, -1+i, -1-i, 1-i)
Output:
- Input:
is_concyclic(i, -1+i, -1-i, 1-i)
Output: