An even Walsh function with sequency defined by
Cal
See also
Sal, Sequency, Walsh FunctionExplore with Wolfram|Alpha
References
Harmuth, H. F. "Applications of Walsh Functions in Communications." IEEE Spectrum 6, 82-91, 1969.Thompson, A. R.; Moran, J. M.; and Swenson, G. W. Jr. Interferometry and Synthesis in Radio Astronomy. New York: Wiley, p. 204, 1986.Referenced on Wolfram|Alpha
CalCite this as:
Weisstein, Eric W. "Cal." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Cal.html