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2. Palindromic prime - Wikipedia

   en.wikipedia.org/wiki/Palindromic_prime

   In mathematics, a palindromic prime (sometimes called a palprime [1]) is a prime number that is also a palindromic number.Palindromicity depends on the base of the number system and its notational conventions, while primality is independent of such concerns.

3. Error function - Wikipedia

   en.wikipedia.org/wiki/Error_function

   Given a complex number z, there is not a unique complex number w satisfying erf w = z, so a true inverse function would be multivalued. However, for −1 < x < 1, there is a unique real number denoted erf −1 x satisfying ⁡ (⁡) =.

4. Law of total tricks - Wikipedia

   en.wikipedia.org/wiki/Law_of_total_tricks

   The total number of trumps is 16 so the "law" says the total number of tricks is also 16. That is, if North-South can take eight tricks playing in hearts, then East-West can take 16 - 8 = 8 tricks playing in spades; if North-South can take nine tricks in hearts, LoTT says East-West can take only seven tricks in spades.

5. 58 (number) - Wikipedia

   en.wikipedia.org/wiki/58_(number)

   58 is equal to the sum of the first seven consecutive prime numbers: [2] + + + + + + = This is a difference of 1 from the seventeenth prime number and seventh super-prime, 59. [3] [4] 58 has an aliquot sum of 32 [5] within an aliquot sequence of two composite numbers (58, 32, 13, 1, 0) in the 13-aliquot tree. [6]

6. Murderous Maths - Wikipedia

   en.wikipedia.org/wiki/Murderous_Maths

   Murderous Maths is a series of British educational books by author Kjartan Poskitt.Most of the books in the series are illustrated by illustrator Philip Reeve, with the exception of "The Secret Life of Codes", which is illustrated by Ian Baker, "Awesome Arithmetricks" illustrated by Daniel Postgate and Rob Davis, and "The Murderous Maths of Everything", also illustrated by Rob Davis.

7. Basic Math (video game) - Wikipedia

   en.wikipedia.org/wiki/Basic_Math_(video_game)

   For the Sears release of the Atari VCS under their Tele-Games label, the game was released as Math. [12] [13] Basic Math was re-released in January 1980 under the title Fun With Numbers. Atari halted production on new carts of the game by January 1982. The game remained in circulation as late as 1988, selling a little over 6,000 copies that ...