References
- J. O. Case, The chain letter: an example of exponential growth, Mathematics Teacher 80 (1987), 114–115.
- S. M. Ross, Introduction to Probability Models, 7th ed., Academic Press, San Diego, 2000.
- D. J. Thuente, Chain letters: a poor investment unless…, Two-Year College Mathematics Journal 13 (1982), 28–35.
References
- Frank Burk, Natural logarithms via long division, College Mathematics Journal 30 (1999), 309–311.
- Leonard Gillman and Robert H. McDowell, Calculus, 2nd ed., Norton, 1978.
- Alexander Kheyfits, et al., A series whose sum is In k, College Mathematics Journal 30 (1999), 145–146.
- Charles Kicey and Sudhir Goel, A Series for In k, American Mathematical Monthly 105 (1998), 552–554.
- James Lesko, A series for In k, College Mathematics Journal 32 (2001), 119–122.
References
- Bernard Banks, Differential Equations with Graphical and Numerical Methods, Prentice Hall, 2001.
- R. E. Johnson, and F. L. Kiokemeister, Calculus and Analytic Geometry (3rd ed.), Allyn and Bacon, 1964.