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- Abe Mantell

Hello, I am a college professor of mathematics and regularly teach all levels from elementary mathematics through differential equations, and would be happy to assist anyone with such questions!

Over 15 years teaching at the college level.

B.S. in Mathematics from Rensselaer Polytechnic Institute

M.S. (and A.B.D.) in Applied Mathematics from SUNY @ Stony Brook

User | Date | K | C | P | Comments |
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Debbie | 06/01/16 | 10 | 10 | 10 | |

Gabe | 04/12/16 | 10 | 10 | 10 | Thank you! Very detailed, much appreciated. |

Jeffrey | 04/06/16 | 10 | 10 | 10 | Great example, even the knuckleheads I work ..... |

Russ Bryan | 04/05/16 | 10 | 10 | 10 | Very pleased with response time. On a ..... |

John | 01/19/16 | 10 | 10 | 10 |

Hello Tom, These days, with the Internet, it is easy to get many digits of pi with great reliability. For example: http://www.factmonster.com/ipka/A0876705.html http://www.geom.uiuc.edu/~huberty/math5337/groupe/digits

Good question! Here are some places to read about it... https://www.quora.com/How-did-Shakuntala-Devi-perform-such-huge-calculations-with-great-speed-and-precision https://www.quora.com/How-did-Shakuntala-Devi-mentally-calculate-the-23rd-root-of-a-201-digit-number-correctly

Hello Julian, Without additional info there are literally infinitely many possibilities! The relationship could be (1) linear, (2) quadratic, (3) cubic, (4) exponential, (5) logarithmic, (6) power

Hello Aishwarya, These websites should help: http://www.whoinvented.org/who-invented-numbers/ https://en.wikipedia.org/wiki/Number http://www.whoinventedit.net/who-invented-numbers.html http://mathforum

Hello Ahmad, In this case we can use the well-known formula in probability: P(A or B) = P(A) + P(B) - P(A and B) However, we only know P(A)=0.5 and P(B)=0.6, we need one more piece of info...either