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  2. Cube root - Wikipedia

    en.wikipedia.org/wiki/Cube_root

    This cube root is called the principal cube root and is the cube root with the largest real part. In the case of negative real numbers, the two nonreal roots share the same largest real part, and the principal cube root is the one with positive real part; so, it is different from the real cube root.

  3. Counting rods - Wikipedia

    en.wikipedia.org/wiki/Counting_rods

    A square lacquer box, dating from c. 168 BCE, containing a square chess board with the TLV patterns, chessmen, counting rods, and other items, was excavated in 1972, from Mawangdui M3, Changsha, Hunan Province. [4] [5] In 1976, a bundle of Western Han-era (202 BCE to 9 CE) counting rods made of bones was unearthed from Qianyang County in Shaanxi.

  4. Triangular number - Wikipedia

    en.wikipedia.org/wiki/Triangular_number

    A square whose side length is a triangular number can be partitioned into squares and half-squares whose areas add to cubes. This shows that the square of the n th triangular number is equal to the sum of the first n cube numbers. Also, the square of the n th triangular number is the same as the sum of the cubes of the integers 1 to n.

  5. Cubic equation - Wikipedia

    en.wikipedia.org/wiki/Cubic_equation

    The other roots of the equation are obtained either by changing of cube root or, equivalently, by multiplying the cube root by a primitive cube root of unity, that is . This formula for the roots is always correct except when p = q = 0 , with the proviso that if p = 0 , the square root is chosen so that C ≠ 0 .

  6. Nested radical - Wikipedia

    en.wikipedia.org/wiki/Nested_radical

    In the case of three real roots, the square root expression is an imaginary number; here any real root is expressed by defining the first cube root to be any specific complex cube root of the complex radicand, and by defining the second cube root to be the complex conjugate of the first one.

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  8. List of numbers - Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/List_of_numbers

    A list of articles about numbers (not about numerals). Topics include powers of ten, notable integers, prime and cardinal numbers, and the myriad system.

  9. Ind. Man Had 10,000 Fragments of Human Remains on ... - AOL

    www.aol.com/ind-man-had-10-000-195355063.html

    Police believe Herb Baumeister targeted gay men and buried at least 25 victims on $1 million Indiana estate in the 1990s