sequency

sequency (plural sequencies)

1. (mathematics) Half the number of zero crossings in the time base of a Walsh function.
   • 2014, R. A.M. Gregson, Time Series in Psychology, →ISBN:

     The execution of a sequence may involve some or all of the three stages; if only amplitude gain is to be corrected and not sequency and target specification, then correction can be rapid enough to change an arpeggio-like run in “mid flight.”

   • 2014 -, Anish Deb, Suchismita Ghosh, Power Electronic Systems, →ISBN, page 16:

     From this, we see that frequency can be regarded as a special measure of sequency applicable to sinusoidal waveforms only.

   • 2016, Scott E Umbaugh, Digital Image Processing and Analysis, →ISBN:

     Spatial domain processing methods include all three types, but frequency domain operations, by nature of the frequency (and sequency) transforms, are global operations.

   • 2017, A. Richard Thompson, James M. Moran, George W. Swenson Jr., Interferometry and Synthesis in Radio Astronomy, →ISBN, page 293:

     Walsh functions with different sequencies are orthogonal, and cal and sal functions of the same sequency are orthogonal but differ only by a time offset.

2. A pattern or order of sequential items in a series.
   • 2008 -, Max Costa, Metal Carcinogenesis Testing: Principles and In Vitro Methods, page 59:

     If a metal causes cancer by direct “genetic mechanisms” involving mutations in the primary sequency of DNA, it must be able to distribute directly to the nucleus and remain there to make contact with DNA.

   • 2013, Paulo Murilo C. de Oliveira, Dietrich Stauffer, Evolution, Money, War, and Computers, →ISBN:

     These conjectures appeared because they searched among the current existing mitochondrial DNA for common sequencies.

   • 2014, Eric D. Wills, Biochemical Basis of Medicine, →ISBN, page 515:

     Amino acid sequency of ẞ chain