Shingles - causes, symptoms, treatment, vaccination. Shingles is a viral infection, the first symptom of which is usually a tingling, sharp, burning pain under the skin, followed after 1-3 days by a red rash and blisters. Shingles is caused by the same virus as chickenpox (varicella zoster).
Rating: Be the first to rate this item. O.F.A.C. stands for the Office of Foreign Assets Control and is a part of the U. S. Department of the Treasury. The following definition was found on the OFAC web site:
DEFINITION. A function f is even if the graph of f is symmetric with respect to the y-axis. Algebraically, f is even if and only if f(-x) = f(x) for all x in the domain of f. A function f is odd if the graph of f is symmetric with respect to the origin.Algebraically, f is odd if and only if f(-x) = -f(x) for all x in the domain of f. 1  Discussion [ Using Flash 2  ]. Examples. 3  An interactive LiveMath notebook to visualize symmetry with respect to the origin.bjectives: In this tutorial, we define what it means for a function to be symmetric with respect to the y-axis and the origin. Algebraic conditions for these two types of symmetry are obtained from the geometrical definitions.