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  2. Rationality - Wikipedia

    en.wikipedia.org/wiki/Rationality

    A person who possesses these forms of rationality to a sufficiently high degree may themselves be called rational. [1] In some cases, also non-mental results of rational processes may qualify as rational. For example, the arrangement of products in a supermarket can be rational if it is based on a rational plan. [6] [2]

  3. Rational number - Wikipedia

    en.wikipedia.org/wiki/Rational_number

    In mathematics, "rational" is often used as a noun abbreviating "rational number". The adjective rational sometimes means that the coefficients are rational numbers. For example, a rational point is a point with rational coordinates (i.e., a point whose coordinates are rational numbers); a rational matrix is a matrix of rational numbers; a rational polynomial may be a polynomial with rational ...

  4. Commensurability (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Commensurability_(mathematics)

    In mathematics, two non-zero real numbers a and b are said to be commensurable if their ratio ⁠ a / b ⁠ is a rational number; otherwise a and b are called incommensurable. (Recall that a rational number is one that is equivalent to the ratio of two integers.) There is a more general notion of commensurability in group theory.

  5. Arithmetic - Wikipedia

    en.wikipedia.org/wiki/Arithmetic

    Rational number arithmetic involves operations on fractions of integers. Real number arithmetic is about calculations with real numbers, which include both rational and irrational numbers. Another distinction is based on the numeral system employed to perform calculations. Decimal arithmetic is the most common.

  6. Rational function - Wikipedia

    en.wikipedia.org/wiki/Rational_function

    In mathematics, a rational function is any function that can be defined by a rational fraction, which is an algebraic fraction such that both the numerator and the denominator are polynomials. The coefficients of the polynomials need not be rational numbers ; they may be taken in any field K .

  7. Man indicted in burning death of woman inside a New York City ...

    www.aol.com/court-hearing-set-man-accused...

    The indictment comes days after Sebastian Zapeta’s arrest and subsequent police questioning, in which authorities say he claimed not to know what had happened but identified himself in photos ...

  8. Number theory - Wikipedia

    en.wikipedia.org/wiki/Number_theory

    Number theory is a branch of pure mathematics devoted primarily to the study of the integers and arithmetic functions.German mathematician Carl Friedrich Gauss (1777–1855) said, "Mathematics is the queen of the sciences—and number theory is the queen of mathematics."

  9. Scientists Finally Solved the Mystery of How the Mayan ...

    www.aol.com/lifestyle/scientists-finally-solved...

    But it does when you look at it over 16,380 days (roughly 45 years), not just 819 days. That’s a total of 20 819-day timelines.

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