User:Shyam Sunder Gupta

•Shyam Sunder Gupta

E-mail: guptass@rediffmail.com
Web page: www.shyamsundergupta.com  

I completed my degree in civil engineering in 1980 and joined the Indian Railways in 1983. I have more than 35 years of extensive experience in various fields related to the railway sector. My interest in number recreation dates back to 1978, when my first paper, "Miracles of Last Digit" was published in the Indian magazine Junior Science Digest. Since then, my contribution has been published in Science Reporter, Science Today, Math Education, American Mathematical Monthly (USA), Mathematical Gazette (UK), Math. Spectrum (UK), Scientia Magna (USA), etc. Some of the international books where my contribution can be seen are (i) Unsolved Problems in Number Theory by R.K. Guy (Springer, USA). (ii) The Universal Book of Mathematics by David J. Darling, 2004. (John Wiley & Sons). (iii) The Penguin Dictionary of Curious and Interesting Numbers by David Wells (Penguin Books, UK). (iv) The Most Mysterious Figures in Math: “Prime Numbers” by David Wells (John Wiley & Sons); (v) “Prime Curios”, the Dictionary of Prime Number Trivia by Caldwell and Honaker (create Space, 2009). (vi) Those Fascinating Numbers by Jean-Marie De Koninck (American Mathematical Society) and many others. My interest includes developing different algorithms and codes using different programming languages like Fortran, C++, Ubasic, Mathematica, GP_Pari, etc. to reduce computing time. My other interests include computational number theory, prime polynomials, rare numbers, strong pseudoprimes, unique numbers, triangular numbers, Smith numbers, prime numbers, number recreations, etc. ted my degree in civil engineering in 1980 and joined the Indian Railways in 1983. I have more than 35 years of extensive experience in various fields related to the railway sector. My interest in number recreation dates back to 1978, when my first paper, "Miracles of Last Digit" was published in the Indian magazine Junior Science Digest. Since then, my contribution has been published in Science Reporter, Science Today, Math Education, American Mathematical Monthly (USA), Mathematical Gazette (UK), Math. Spectrum (UK), Scientia Magna (USA), etc. Some of the international books where my contribution can be seen are (i) Unsolved Problems in Number Theory by R.K. Guy (Springer, USA). (ii) The Universal Book of Mathematics by David J. Darling, 2004. (John Wiley & Sons). (iii) The Penguin Dictionary of Curious and Interesting Numbers by David Wells (Penguin Books, UK). (iv) The Most Mysterious Figures in Math: “Prime Numbers” by David Wells (John Wiley & Sons); (v) “Prime Curios”, the Dictionary of Prime Number Trivia by Caldwell and Honaker (create Space, 2009). (vi) Those Fascinating Numbers by Jean-Marie De Koninck (American Mathematical Society) and many others. My interest includes developing different algorithms and codes using different programming languages like Fortran, C++, Ubasic, Mathematica, GP_Pari, etc. to reduce computing time. My other interests include computational number theory, prime polynomials, rare numbers, strong pseudoprimes, unique numbers, triangular numbers, Smith numbers, prime numbers, number recreations, etc.

I have designed and maintained my website, “www.shyamsundergupta.com” since 2001 on Number Recreations. The site has been very popular and is being visited by visitors from more than 150 countries. The reference to the website can be seen in many international books and other popular websites.

I am the author of the book "Creative Puzzles to Ignite Your Mind" published by Springer in March 2023 and featured in the newspaper The Guardian (UK) in September 2023.

 I am the co-author of the book ‘Civil Engineering through Objective Questions,” published in 1985 by CBS Publishers, New Delhi. I have published more than 30 papers in national and international journals, especially on number recreations.  Some of my discoveries are EPRNs (Equal Product of Reversible Numbers), Rare Numbers, Amicable and magic factorions,  Happy and Harshad Amicable Pairs, Unique Numbers, Cab Numbers, and so on, refer to https://shyamsundergupta.com/

The paper “Prime Generating Polynomials” by Ed Pegg Jr. (July 17, 2006) in (http://www.mathpuzzle.com/MAA/48-Prime%20Generating%20Polynomials/mathgames_07_17_06.html) mentioned my discovery of the best fifth-order prime generating polynomial.

I have contributed more than 1300 Prime Curios to https://primes.utm.edu/curios/ByNumber.php  ranking second in the list of Top Ranked Curio Submitters.

I have contributed more than 600 integer sequences to The On-Line Encyclopedia of Integer Sequences® (OEIS®) https://oeis.org/search?q=Author%3A+Shyam+Sunder+Gupta&language=english&go=Search