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A note on Pythagorean triple preserving matrices. (English)
Int. J. Math. Educ. Sci. Technol. 33, No. 6, 893-894 (2002).
Several authors have found many Pythagorean triple preserving matrices in recent years. The purpose of this note is to show that all these matrices, and in particular the results published in Deshpande’s 2001 paper are special cases of the earlier results obtained by Palmer, Ahuja and Tikoo.
Classification: H60
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