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  2. 1 + 2 + 3 + 4 + ⋯ - ⋯ - Wikipedia

    en.wikipedia.org/wiki/1_%2B_2_%2B_3_%2B_4_%2B_%E...

    The partial sums of the series 1 + 2 + 3 + 4 + 5 + 6 + ⋯ are 1, 3, 6, 10, 15, etc.The nth partial sum is given by a simple formula: = = (+). This equation was known ...

  3. 3 - Wikipedia

    en.wikipedia.org/wiki/3

    When doing quick estimates, 3 is a rough approximation of π, 3.1415..., and a very rough approximation of e, 2.71828... 3 is the first Mersenne prime , as well as the second Mersenne prime exponent and the second double Mersenne prime exponent , for 7 and 127 , respectively. 3 is also the first of five known Fermat primes , which include 5, 17 ...

  4. Mathematical logic - Wikipedia

    en.wikipedia.org/wiki/Mathematical_logic

    Mathematical logic, also called 'logistic', 'symbolic logic', the 'algebra of logic', and, more recently, simply 'formal logic', is the set of logical theories elaborated in the course of the nineteenth century with the aid of an artificial notation and a rigorously deductive method. [5]

  5. Why food safety experts stand behind the 'when in doubt ... - AOL

    www.aol.com/why-food-safety-experts-stand...

    December 5, 2024 at 5:00 AM. With the inflated price of groceries today, people might be wondering how much they can kick the can when it comes to the expiration dates of an array of items.

  6. Mathematical physics - Wikipedia

    en.wikipedia.org/wiki/Mathematical_physics

    An example of mathematical physics: solutions of Schrödinger's equation for quantum harmonic oscillators (left) with their amplitudes (right).. Mathematical physics refers to the development of mathematical methods for application to problems in physics.

  7. Washington boy, 12, steals grandfather's car, drives 160 ...

    www.aol.com/washington-boy-12-steals...

    The Sheriff’s Motor Traffic Unit began searching for the car and located the vehicle at around 10:20 a.m. parked at the curb of the 900 block of Lowry Street in the Larson Community in Moses Lake.

  8. Prince William Revisited Hobby He Gave Up Years Ago Because ...

    www.aol.com/prince-william-revisited-hobby-gave...

    Prince William Revisited Hobby He Gave Up Years Ago Because Kate Middleton Said ‘It Always Fills Me With Horror’

  9. Special right triangle - Wikipedia

    en.wikipedia.org/wiki/Special_right_triangle

    Set square shaped as 45° - 45° - 90° triangle The side lengths of a 45° - 45° - 90° triangle 45° - 45° - 90° right triangle of hypotenuse length 1.. In plane geometry, dividing a square along its diagonal results in two isosceles right triangles, each with one right angle (90°, ⁠ π / 2 ⁠ radians) and two other congruent angles each measuring half of a right angle (45°, or ...