trigonometric function: References & Edit History

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Article History

Type Description Contributor Date
Invalidated site: Newcastle University - Trigonometric Functions (PDF). Oct 22, 2026
Add new Web site: The Royal Society Publishing - Proceedings A - Basis and regularity properties of (p,q)-trigonometric functions and the decay of (p,q)-Fourier coefficients. Feb 27, 2026
Article revised and updated. Dec 22, 2025
Add new Web site: UTSA Pressbooks - Topics in Precalculus - The Other Trigonometric Functions. Nov 28, 2025
Article revised and updated. Oct 21, 2025
Add new Web site: Digital Commons at Ursinus College - A Genetic Context for Understanding the Trigonometric Functions (PDF). Oct 02, 2025
Add new Web site: Campus Manitoba PressbooksEDU Network - Calculus: Volume 2 (Second University of Manitoba Edition) - Derivatives of Inverse Trigonometric Functions. Aug 22, 2025
Add new Web site: Newcastle University - Trigonometric Functions (PDF). May 20, 2025
Add new Web site: Digital Commons at Ursinus College - The Trigonometric Functions Through Their Origins: Varahamihira and the Poetry of Sines (PDF). Dec 06, 2024
Add new Web site: Purdue University Northwest - The Trigonometric Functions. Oct 26, 2024
Add new Web site: OpenStax - Precalculus 2e - Introduction to Trigonometric Functions. Sep 14, 2024
Add new Web site: Pressbooks Create - Calculus Volume 1 - Trigonometric Functions. May 10, 2024
Add new Web site: Simon Fraser University - Trigonometric Functions. Mar 01, 2024
Add new Web site: Whitman College - Trigonometric Functions (PDF). Dec 08, 2023
Add new Web site: British Columbia/Yukon Open Authoring Platform - Trigonometric Functions. Oct 10, 2023
Add new Web site: Clark University - David E. Joyce - Trigonometric Functions. Apr 29, 2023
Add new Web site: Story of Mathematics - Trigonometric Functions � Explanation & Examples. Dec 09, 2022
Add new Web site: Mathematics LibreTexts - Solving and Trigonometric Functions. Sep 12, 2022
Article revised and updated. Mar 15, 2022
Added new Web site: ThinkQuest - Trigonometric Function. Apr 07, 2009
New article added. Mar 17, 2009
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