March 22 inflection point

March 22 is the 81st day of the year (82nd in leap years) in the Gregorian calendar. There are 284 days remaining until the end of the year. This date is slightly more likely to fall on a Tuesday, Thursday or Sunday (58 in 400 years each) than on Friday or Saturday (57), and slightly less likely to occur on a Monday or Wednesday (56).

In differential calculus, an inflection point, point of inflection, flex, or inflection (British English: inflexion) is a point on a curve at which the curve changes from being concave (concave downward) to convex (concave upward), or vice versa.