A point of discontinuity, also called a leap.
Jump
See also
Discontinuity, Jump Angle, Jump Discontinuity, Jumping ChampionExplore with Wolfram|Alpha
References
Jeffreys, H. and Jeffreys, B. S. "Leap at a Discontinuity." §1.094 in Methods of Mathematical Physics, 3rd ed. Cambridge, England: Cambridge University Press, p. 26, 1988.Referenced on Wolfram|Alpha
JumpCite this as:
Weisstein, Eric W. "Jump." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Jump.html