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2. Negative number - Wikipedia

   en.wikipedia.org/wiki/Negative_number

   In mathematics, a negative number is the opposite of a positive real number. [1] Equivalently, a negative number is a real number that is less than zero. Negative numbers are often used to represent the magnitude of a loss or deficiency. A debt that is owed may be thought of as a negative asset.

3. Plus and minus signs - Wikipedia

   en.wikipedia.org/wiki/Plus_and_minus_signs

   While in J a negative number is denoted by an underscore, as in _5. In C and some other computer programming languages, two plus signs indicate the increment operator and two minus signs a decrement; the position of the operator before or after the variable indicates whether the new or old value is read from it. For example, if x equals 6, then ...

4. Subtraction - Wikipedia

   en.wikipedia.org/wiki/Subtraction

   While primarily associated with natural numbers in arithmetic, subtraction can also represent removing or decreasing physical and abstract quantities using different kinds of objects including negative numbers, fractions, irrational numbers, vectors, decimals, functions, and matrices. [2] In a sense, subtraction is the inverse of addition.

5. Sign (mathematics) - Wikipedia

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

   A number is non-negative if it is greater than or equal to zero. A number is non-positive if it is less than or equal to zero. When 0 is said to be both positive and negative, [citation needed] modified phrases are used to refer to the sign of a number: A number is strictly positive if it is greater than zero. A number is strictly negative if ...

6. Sign function - Wikipedia

   en.wikipedia.org/wiki/Sign_function

   The signum function of a real number is a piecewise function which is defined as follows: [1] ⁡:= {<, =, > The law of trichotomy states that every real number must be positive, negative or zero. The signum function denotes which unique category a number falls into by mapping it to one of the values −1 , +1 or 0, which can then be used in ...

7. Kate Middleton Breaks Silence with Emotional New Message on ...

   www.aol.com/kate-middleton-breaks-silence...

   In recent months, Kate Middleton has understandably been absent from the spotlight...for the most part. We did, of course, get her gorgeous Remembrance Day appearance and we got word of a hush ...