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The Knot Worldwide, formerly XO Group, The Knot Inc, and WeddingWire, Inc, is a global technology company that provides content, tools, products and services for couples who are planning weddings, organizing a celebration, and navigating pregnancy and parenting. In 2019, The Knot Worldwide was created by a merger between predecessors XO Group ...
Unknotting number. Trefoil knot without 3-fold symmetry being unknotted by one crossing switch. In the mathematical area of knot theory, the unknotting number of a knot is the minimum number of times the knot must be passed through itself ( crossing switch) to untie it. If a knot has unknotting number , then there exists a diagram of the knot ...
A telephone number serves as an address for switching telephone calls using a system of destination code routing. [1] Telephone numbers are entered or dialed by a calling party on the originating telephone set, which transmits the sequence of digits in the process of signaling to a telephone exchange. The exchange completes the call either to ...
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Average crossing number. In the mathematical subject of knot theory, the average crossing number of a knot is the result of averaging over all directions the number of crossings in a knot diagram of the knot obtained by projection onto the plane orthogonal to the direction. The average crossing number is often seen in the context of physical ...
California was ranked as one of the top 10 most expensive states to host a wedding, with an average cost of $41,000. (New Jersey was the priciest at $55,000.) In L.A., the median wedding cost was ...
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In knot theory, the self-linking number is an invariant of framed knots. It is related to the linking number of curves. A framing of a knot is a choice of a non-zero non-tangent vector at each point of the knot. More precisely, a framing is a choice of a non-zero section in the normal bundle of the knot, i.e. a (non-zero) normal vector field.