Frequ

Frequ is an informal shorthand for frequency, used primarily in technical notes, quick drafts, and data labels where space or speed of writing is a consideration. It is not an official unit or standardized term in physics or engineering, and its meaning can vary depending on context.

In practice, frequ may appear as a column header, a variable name, or a label in plots and spreadsheets. It is typically accompanied by explicit units (for example, Hz, kHz, or MHz) to avoid ambiguity. Because frequently used abbreviations are not standardized, documents that employ frequ should define it clearly to prevent misinterpretation. In programming and data analysis, frequ is sometimes used within functions or datasets as a shorthand for “frequency of the signal,” “sampling frequency,” or other domain-specific frequencies, but readers should rely on accompanying documentation.

Caution is advised when encountering frequ in external sources, as it can be confused with other abbreviations such as f for frequency or frq in some contexts. When possible, replacing frequ with the full term frequency or consistently using a defined alias improves clarity and interoperability across code, datasets, and publications.

Etymology and usage notes: frequ appears to be derived from the word frequency and is primarily a nonstandard shorthand seen in informal contexts rather than formal scientific writing. It is most likely to be encountered in internal notes, quick calculations, or user-generated labels rather than in peer-reviewed literature.

See also: frequency, angular frequency, Fourier transform, sampling rate, spectral density.