ثابت (ریاضیات) (Persian Wikipedia)

Analysis of information sources in references of the Wikipedia article "ثابت (ریاضیات)" in Persian language version.

refsWebsite

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low place

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archive.org

Foerster, Paul A. (2006). Algebra and Trigonometry: Functions and Applications, Teacher's Edition (Classics ed.). Upper Saddle River, NJ: Prentice Hall. ISBN 0-13-165711-9.

mathvault.ca

"Compendium of Mathematical Symbols". Math Vault (به انگلیسی). 2020-03-01. Retrieved 2020-08-08.

wolfram.com

mathworld.wolfram.com

Weisstein, Eric W. "Constant". mathworld.wolfram.com (به انگلیسی). Retrieved 2020-08-08.