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2. Glossary of mathematical symbols - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_mathematical...

   A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various types, many symbols are needed for ...

3. Hyperboloid model - Wikipedia

   en.wikipedia.org/wiki/Hyperboloid_model

   The vectors v ∈ R n+1 such that Q(v) = -1 form an n-dimensional hyperboloid S consisting of two connected components, or sheets: the forward, or future, sheet S +, where x 0 >0 and the backward, or past, sheet S −, where x 0 <0. The points of the n-dimensional hyperboloid model are the points on the forward sheet S +. The metric on the ...

4. Mathematical notation - Wikipedia

   en.wikipedia.org/wiki/Mathematical_notation

   Mathematical notation consists of using symbols for representing operations, unspecified numbers, relations, and any other mathematical objects and assembling them into expressions and formulas. Mathematical notation is widely used in mathematics, science, and engineering for representing complex concepts and properties in a concise ...

5. 5 Expensive Sam’s Club Items To Buy on Amazon Instead - AOL

   www.aol.com/finance/5-expensive-sam-club-items...

   Ensure you do the math correctly to know exactly how Amazon’s deal stacks up against Sam’s Club. On one hand, Sam’s Club offers you a 100-count box of Green Mountain coffee pods for $41.98 ...

6. Mathematics - Wikipedia

   en.wikipedia.org/wiki/Mathematics

   Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes.

7. Sign (mathematics) - Wikipedia

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

   This attribute of a number, being exclusively either zero (0), positive (+), or negative (−), is called its sign, and is often encoded to the real numbers 0, 1, and −1, respectively (similar to the way the sign function is defined). [1] Since rational and real numbers are also ordered rings (in fact ordered fields ), the sign attribute also ...