**From:**Saturday, June 23, 2012, 2:00 pm**To:**Sunday, June 24, 12:30.**Location:**Danbury, CT

Western Connecticut State University

Higgins Hall, room 206

**Contact:**Chuck Rocca, RoccaC@wcsu.edu**Readings:**Readings from Indian and Islamic trigonometry, to be selected from*The Mathematics of Egypt, Mesopotamia, China, India, and Islam: A Sourcebook*by Victor Katz.The following selections from

*Regiomontanus: On Triangles*(email bradley at adelphi dot edu for page scans):

Book III, theorems 2, 3 [pages 144-145]

Book III, theorem 16 [pages 158-159]

Book IV, theorem 4 [pages 206-207]

Book IV, theorem 15 : Look at the theorem statement only (not the proof). [pages 218-221] A version of the "theorem that dispenses" or "rule of four quantities"

Book IV, theorems 19 [pages 230-233]

Book V, theorem 1 [pages 268-271]

Book V, theorem 2 : Look at the theorem statement only (not the proof). [pages 270-275, including proof. pages 270-271 for Results without proof]. Equivalent to spherical law of cosines for sides.Optional readings, time and interest permitting:

Book IV, theorem 16 [pages 222-225] spherical law of sines for right triangles

Book IV, theorem 17 [pages 225-227] spherical law of sines for non-right triangles

Book IV, theorem 18 [pages 227-231] another one of Napier's rules**Schedule:**- Saturday, 12:00, optional lunch for early arrivers
- Saturday, 2:00 pm, afternoon session begins
- Saturday, 6:30 pm, optional dinner
- Sunday, 9:00 am, morning session begins
- Sunday, 12:30, farewells and optional lunch

Last modified: June 6, 2012. Rob Bradley / bradley@adelphi.edu