Constant function (Simple English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Constant function" in Simple English language version.

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archive.org (Global: 6^th place; Simple English: 4^th place)

Tanton, James (2005). Encyclopedia of Mathematics. Facts on File, New York. p. 94. ISBN 0-8160-5124-0. (in English)
Weisstein, Eric (1999). CRC Concise Encyclopedia of Mathematics. CRC Press, London. p. 313. ISBN 0-8493-9640-9. (in English)

C.Clapham, J.Nicholson (2009). "Oxford Concise Dictionary of Mathematics, Constant Function" (PDF). Addison-Wesley. p. 175. Retrieved 1 January 2014.

Dawkins, Paul (2007). "College Algebra". Lamar University. p. 224. Retrieved 1 January 2014.
Dawkins, Paul (2007). "Derivative Proofs". Lamar University. Retrieved 1 January 2014.

"Zero Derivative implies Constant Function". Archived from the original on 12 January 2014. Retrieved 1 January 2014.

"Zero Derivative implies Constant Function". Archived from the original on 12 January 2014. Retrieved 1 January 2014.