References

  1. Kline, Morris, Mathematical Thought from ancient to Modern Times, Oxford University Press, 1972
  2. Truesdell, Clifford, Leonard Euler, Supreme Geo­meter, in The Genius of Euler, W. Dunham editor, The mathematical Association of America, 2007
  3. McIntyre, Dale L., The God-Fearing Life of Leonhard Euler, this document is located on the internet at
    acmsonline.org/​home2/​wp-content/​uploads/​2016/​05/​McIntyre.pdf
  4. Boyer, Carl B , The Foremost Textbook of Modern Times, summary of lecture given at an International Congress of math­ematicians, Cam­bridge Mass­achusetts, 1950, on the internet at
    www-history.mcs.st-and.ac.uk/​Extras/​Boyer_Foremost_Text.html
  5. Hopkins, B. and Wilson, R., The Truth about Kön­igsberg, in The Genius of Euler, W. Dunham editor, The mathematical Association of America, 2007
  6. Gautschi, Walter, Leonhard Euler: His life, the man, and his works, SIAM Review, Vol. 50, No. 1, pp. 3–33 (2007), available on the web at
    www.euler-2007.ch/doc/​EulerLec.pdf
  7. Du Pasquier, Louis-Gustave, Leonhard Euler and His Friends, translated by John Glaus, CreateSpace, 2008
  8. Leonhard Euler, Wikipedia – the free encyclopedia, this biography is located on the internet at
    en.wikipedia.org/​wiki/​Leonhard_Euler
  9. Euler biography,
    www-history.mcs.st-andrews.ac.uk/​Biographies/Euler.html
  10. The Euler Archive, located on the internet at
    eulerarchive.maa.org

+++++