In mathematics, the winding number of a closed curve in the plane around a given point is an integer representing the total number of times that curve travels counterclockwise around the point. The winding number depends on the orientation of the curve, and is negative if the curve travels around the point clockwise.
Winding numbers are fundamental objects of study in algebraic topology, and they play an important role in vector calculus, complex analysis, geometric topology, differential geometry, and physics, including string theory.
Read more about Winding Number: Intuitive Description, Formal Definition, Alternative Definitions, Turning Number, Winding Number and Heisenberg Ferromagnet Equations
Famous quotes containing the words winding and/or number:
“Few, few shall part, where many meet!
The snow shall be their winding sheet,
And every turf, beneath their feet,
Shall be a soldier’s sepulchre.”
—Thomas Campbell (1774–1844)
“... in every State there are more women who can read and write than the whole number of illiterate male voters; more white women who can read and write than all Negro voters; more American women who can read and write than all foreign voters.”
—National Woman Suffrage Association. As quoted in History of Woman Suffrage, vol. 4, ch. 13, by Susan B. Anthony and Ida Husted Harper (1902)