Book:Ioannis de Regio Monte/De Triangulis Omnimodus

Ioannis de Regio Monte: De Triangulis Omnimodus

Published $\text {1464}$
In English:

On Universal Triangles, or On All Classes of Triangles

Subject Matter

• Spherical Trigonometry

Contents

Spherical Law of Sines

Spherical Law of Cosines

Also known as

Some sources present the name of this work as De triangulis omni modus, but this is technically incorrect.

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): Regiomontanus, also known as Johann Müller (1436-76)
• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): trigonometry
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Regiomontanus, also known as Johann Müller (1436-76)
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): trigonometry
• 2008: Ian Stewart: Taming the Infinite ... (previous) ... (next): Chapter $5$: Eternal Triangles: Early trigonometry