See Section 13.16.6 for checking for isosceles triangles in two-dimensional geometry.
The is_isosceles command determines whether or not a geometric object is an isoceles triangle.
Examples.
| 2 |
| T:= triangle_isosceles([0,0,0],[2,2,0],[2,2,2]) |
| is_isosceles(T) |
| 1 |
| 0 |