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  2. List of Indian inventions and discoveries - Wikipedia

    en.wikipedia.org/wiki/List_of_Indian_inventions...

    The usage of the zero in the Bakhshali manuscript was dated from between 3rd and 4th centuries, making it the earliest known usage of a written zero, in a decimal place value system. [172] Hindu number system – With decimal place-value and a symbol for zero, this system was the ancestor of the widely used Arabic numeral system. It was ...

  3. 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."

  4. Hindu–Arabic numeral system - Wikipedia

    en.wikipedia.org/wiki/Hindu–Arabic_numeral_system

    The Hindu–Arabic system is designed for positional notation in a decimal system. In a more developed form, positional notation also uses a decimal marker (at first a mark over the ones digit but now more commonly a decimal point or a decimal comma which separates the ones place from the tenths place), and also a symbol for "these digits recur ad infinitum".

  5. Katapayadi system - Wikipedia

    en.wikipedia.org/wiki/Katapayadi_system

    Kaṭapayādi system (Devanagari: कटपयादि, also known as Paralppēru, Malayalam: പരല്‍പ്പേര്) of numerical notation is an ancient Indian alphasyllabic numeral system to depict letters to numerals for easy remembrance of numbers as words or verses. Assigning more than one letter to one numeral and nullifying ...

  6. Kerala school of astronomy and mathematics - Wikipedia

    en.wikipedia.org/wiki/Kerala_school_of_astronomy...

    (The Kerala school did not use the "factorial" symbolism.) The Kerala school made use of the rectification (computation of length) of the arc of a circle to give a proof of these results. (The later method of Leibniz, using quadrature (i.e. computation of area under the arc of the circle), was not yet developed.) [1] They also made use of the series expansion of ⁡ to obtain an infinite ...

  7. Kerala Board of Public Examination - Wikipedia

    en.wikipedia.org/wiki/Kerala_Board_of_Public...

    Kerala Board of Public Examination is the state level education board of Kerala. It is administered by the Government of Kerala. The board is responsible for conducting various examinations on the basis of a unified law. Its headquarters are located at Pareeksha Bhavan, Poojappura, Thiruvananthapuram. [1]

  8. Residue number system - Wikipedia

    en.wikipedia.org/wiki/Residue_number_system

    A residue numeral system (RNS) is a numeral system representing integers by their values modulo several pairwise coprime integers called the moduli. This representation is allowed by the Chinese remainder theorem, which asserts that, if M is the product of the moduli, there is, in an interval of length M, exactly one integer having any given set of modular values.

  9. 3 - Wikipedia

    en.wikipedia.org/wiki/3

    A natural number is divisible by three if the sum of its digits in base 10 is divisible by 3. For example, the number 21 is divisible by three (3 times 7) and the sum of its digits is 2 + 1 = 3. Because of this, the reverse of any number that is divisible by three (or indeed, any permutation of its digits) is also divisible by three. For ...

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