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2. Fraction - Wikipedia

   en.wikipedia.org/wiki/Fraction

   Unit fractions can also be expressed using negative exponents, as in 2 −1, which represents 1/2, and 2 −2, which represents 1/(2 2) or 1/4. A dyadic fraction is a common fraction in which the denominator is a power of two, e.g. ⁠ 1 / 8 ⁠ = ⁠ 1 / 2 3 ⁠. In Unicode, precomposed fraction characters are in the Number Forms block.

3. Ternary numeral system - Wikipedia

   en.wikipedia.org/wiki/Ternary_numeral_system

   One trit is equivalent to log 2 3 (about 1.58496) bits of information. Although ternary most often refers to a system in which the three digits are all non–negative numbers; specifically 0 , 1 , and 2 , the adjective also lends its name to the balanced ternary system; comprising the digits −1 , 0 and +1, used in comparison logic and ternary ...

4. 1 + 2 + 3 + 4 + ⋯ - ⋯ - Wikipedia

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

   The first four partial sums of the series 1 + 2 + 3 + 4 + ⋯.The parabola is their smoothed asymptote; its y-intercept is −1/12. [1]The infinite series whose terms ...

5. List of unsolved problems in mathematics - Wikipedia

   en.wikipedia.org/wiki/List_of_unsolved_problems...

   Characterise word-representable near-triangulations containing the complete graph K 4 (such a characterisation is known for K 4-free planar graphs [129]) Classify graphs with representation number 3, that is, graphs that can be represented using 3 copies of each letter, but cannot be represented using 2 copies of each letter [130]

6. 1 − 2 + 3 − 4 + ⋯ - ⋯ - Wikipedia

   en.wikipedia.org/wiki/1_%E2%88%92_2_%2B_3_%E2%88...

   Download QR code; Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide ... In mathematics, 1 − 2 + 3 ...

7. 3/4 - Wikipedia

   en.wikipedia.org/wiki/3/4

   Download as PDF; Printable version; In other projects ... 3/4 or 3 ⁄ 4 or ¾ may refer to: The fraction three quarters (3 ⁄ 4) equal to 0.75; Arts and media. 3/4 ...