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  2. Luhn algorithm - Wikipedia

    en.wikipedia.org/wiki/Luhn_algorithm

    The check digit is calculated by (()), where s is the sum from step 3. This is the smallest number (possibly zero) that must be added to s {\displaystyle s} to make a multiple of 10. Other valid formulas giving the same value are 9 − ( ( s + 9 ) mod 1 0 ) {\displaystyle 9-((s+9){\bmod {1}}0)} , ( 10 − s ) mod 1 0 {\displaystyle (10-s){\bmod ...

  3. Smallest-circle problem - Wikipedia

    en.wikipedia.org/wiki/Smallest-circle_problem

    The algorithm selects one point p randomly and uniformly from P, and recursively finds the minimal circle containing P – {p}, i.e. all of the other points in P except p. If the returned circle also encloses p, it is the minimal circle for the whole of P and is returned. Otherwise, point p must lie on the boundary of the result circle.

  4. Circle packing - Wikipedia

    en.wikipedia.org/wiki/Circle_packing

    The most efficient way to pack different-sized circles together is not obvious. In geometry, circle packing is the study of the arrangement of circles (of equal or varying sizes) on a given surface such that no overlapping occurs and so that no circle can be enlarged without creating an overlap.

  5. Straightedge and compass construction - Wikipedia

    en.wikipedia.org/wiki/Straightedge_and_compass...

    The most famous of these problems, squaring the circle, otherwise known as the quadrature of the circle, involves constructing a square with the same area as a given circle using only straightedge and compass. Squaring the circle has been proved impossible, as it involves generating a transcendental number, that is, √ π.

  6. Will Arizona State get College Football Playoff bye ...

    www.aol.com/arizona-state-college-football...

    Big 12 Commissioner Brett Yormark presenting Arizona State with the title trophy and doing a little CFP politicking: "The last six weeks, there has not been a better team in college football than ASU.

  7. I Found a New Method for Scrambling Eggs and It's the Only ...

    www.aol.com/found-method-scrambling-eggs-only...

    15 Favorite Ways to Make Scrambled Eggs. 20 Quick Dinners You Can Make With Eggs. 15 Quick and Easy Breakfast Egg Recipes Ready in 15 Minutes or Less. Read the original article on ALLRECIPES.

  8. Montgomery modular multiplication - Wikipedia

    en.wikipedia.org/wiki/Montgomery_modular...

    Using the extended Euclidean algorithm, compute −5 ⋅ 10 + 3 ⋅ 17 = 1, so N′ will be −3 mod 10 = 7. The Montgomery forms of 7 and 15 are 70 mod 17 = 2 and 150 mod 17 = 14 , respectively. Their product 28 is the input T to REDC, and since 28 < RN = 170 , the assumptions of REDC are satisfied.

  9. Drinking Coffee Every Day Could Add Up to 2 Years to Your Life

    www.aol.com/lifestyle/drinking-coffee-every-day...

    Drinking coffee could extend your life up to two years, new research finds. Regular coffee consumption was found to be associated with increased health span (time spent living free from serious ...