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2. Increment and decrement operators - Wikipedia

   en.wikipedia.org/wiki/Increment_and_decrement...

   Increment and decrement operators are unary operators that increase or decrease their operand by one.. They are commonly found in imperative programming languages. C-like languages feature two versions (pre- and post-) of each operator with slightly different semantics.

3. Decade (log scale) - Wikipedia

   en.wikipedia.org/wiki/Decade_(log_scale)

   When a real number like .007 is denoted alternatively by 7.0 × 10 —3 then it is said that the number is represented in scientific notation.More generally, to write a number in the form a × 10 b, where 1 <= a < 10 and b is an integer, is to express it in scientific notation, and a is called the significand or the mantissa, and b is its exponent. [3]

4. Logarithmic decrement - Wikipedia

   en.wikipedia.org/wiki/Logarithmic_decrement

   The logarithmic decrement can be obtained e.g. as ln(x 1 /x 3).Logarithmic decrement, , is used to find the damping ratio of an underdamped system in the time domain.. The method of logarithmic decrement becomes less and less precise as the damping ratio increases past about 0.5; it does not apply at all for a damping ratio greater than 1.0 because the system is overdamped.

5. Decrement - Wikipedia

   en.wikipedia.org/wiki/Decrement

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6. Dedekind cut - Wikipedia

   en.wikipedia.org/wiki/Dedekind_cut

   The essential idea is that we use a set , which is the set of all rational numbers whose squares are less than 2, to "represent" number , and further, by defining properly arithmetic operators over these sets (addition, subtraction, multiplication, and division), these sets (together with these arithmetic operations) form the familiar real numbers.

7. Successor function - Wikipedia

   en.wikipedia.org/wiki/Successor_function

   For example, John von Neumann constructs the number 0 as the empty set {}, and the successor of n, S(n), as the set n ∪ {n}. The axiom of infinity then guarantees the existence of a set that contains 0 and is closed with respect to S. The smallest such set is denoted by N, and its members are called natural numbers. [2]