Math gifts

- Art Gallery -

In geometry, the Murakami–Yano formula, introduced by Murakami & Yano (2005), is a formula for the volume of a hyperbolic or spherical tetrahedron given in terms of its dihedral angles.

Murakami, Jun; Yano, Masakazu (2005), "On the volume of a hyperbolic and spherical tetrahedron", Communications in Analysis and Geometry, 13 (2): 379–400, ISSN 1019-8385, MR 2154824, archived from the original (PDF) on 2012-04-10, retrieved 2012-02-10 url=

Undergraduate Texts in Mathematics

Graduate Texts in Mathematics

Graduate Studies in Mathematics

Mathematics Encyclopedia



Hellenica World - Scientific Library

Retrieved from ""
All text is available under the terms of the GNU Free Documentation License