Виçкĕтеслĕхсене шутласси

Виçкĕтеслĕхсене шутлани (лат. solutio triangulorum)  — виçкĕтеслĕхĕн паллă енĕсем тата кĕтесĕсем тăрăх унăн паллă мар енĕсене тата кетесĕсене тупнине пĕлтерет. Çавăн пеке çапла каланине анлăрах пĕлтерĕшпе те ăнланаççĕ, виçкĕтеслĕхĕн ытти элеменчĕсен те (медиана, çÿллĕш тата ытти те) явăçтараççĕ.

Triangle with notations (black)

Каçăсем

• Trigonometric Delights, by Eli Maor, Princeton University Press, 1998. Ebook version, in PDF format, full text presented.
• Trigonometry by Alfred Monroe Kenyon and Louis Ingold, The Macmillan Company, 1914. In images, full text presented. Google book.
• Spherical trigonometry on Math World.
• Intro to Spherical Trig. Includes discussion of The Napier circle and Napier's rules
• Spherical Trigonometry — for the use of colleges and schools by I. Todhunter, M.A., F.R.S. Historical Math Monograph posted by Cornell University Library.
• Triangulator – Triangle solver. Solve any plane triangle problem with the minimum of input data. Drawing of the solved triangle.
• TriSph – Free software to solve the spherical triangles, configurable to different practical applications and configured for gnomonic.
• Spherical Triangle Calculator – Solves spherical triangles.