Search results
Results from the WOW.Com Content Network
In computer science and graph theory, the zero-weight cycle problem is the problem of deciding whether a directed graph with weights on the edges (which may be positive or negative or zero) has a cycle in which the sum of weights is 0. A graph with a zero-weight cycle.
Trick number operate grow between large positive sum and large negative sum. Describe discrete convolute. Integer, create graph 1 both zero (x- axis) integer. Value zero (y-axis). Two possible integer; add, or do not include integer add zero. Result convolute intege graph. Result graph show number solution sum give value. Example, 3 integer: (2 ...
The converse, though, does not necessarily hold: for example, taking f as =, where V is a Vitali set, it is clear that f is not measurable, but its absolute value is, being a constant function. The positive part and negative part of a function are used to define the Lebesgue integral for a real-valued function.
What follows are two results which will imply that an extended signed measure is the difference of two non-negative measures, and a finite signed measure is the difference of two finite non-negative measures. The Hahn decomposition theorem states that given a signed measure μ, there exist two measurable sets P and N such that: P∪N = X and P ...
In mathematics, zero-sum Ramsey theory or zero-sum theory is a branch of combinatorics.It deals with problems of the following kind: given a combinatorial structure whose elements are assigned different weights (usually elements from an Abelian group), one seeks for conditions that guarantee the existence of certain substructure whose weights of its elements sum up to zero (in ).
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 ...
Signed zero is zero with an associated sign.In ordinary arithmetic, the number 0 does not have a sign, so that −0, +0 and 0 are equivalent. However, in computing, some number representations allow for the existence of two zeros, often denoted by −0 (negative zero) and +0 (positive zero), regarded as equal by the numerical comparison operations but with possible different behaviors in ...
A zero-crossing is a point where the sign of a mathematical function changes (e.g. from positive to negative), represented by an intercept of the axis (zero value) in the graph of the function. It is a commonly used term in electronics, mathematics, acoustics , and image processing .