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Line 242: ===Ideal triangles=== The tessellation for an [[ideal triangle]] with all its vertices on the unit circle and all its angles 0 can be considered as a special case of the tessellation for a triangle with one cusp and two now zero angles {{pi}}/3 and {{pi}}/2. Indeed, the ideal ~~triange~~triangle is made of six copies one-cusped triangle obtained by reflecting the smaller triangle about the vertex with angle {{pi}}/3. {{gallery\|width=300px \|File:H2checkers_23i.png\|<small>Tessellation for triangle with angles 0, {{pi}}/3 and {{pi}}/2</small>

Schwarz triangle function: Difference between revisions