delta
/ˈdɛltə/ noun C1- The fourth letter of the modern Greek alphabet Δ, δ.
- A landform at the mouth of a river where it empties into a body of water. · Nile Delta
- The symbol Δ; A change in a quantity, likely from "d" for "difference". · ΔV - "delta vee"(change in velocity, used in rocketry and orbital mechanics)
- The rate of change in an option value with respect to the underlying asset's price.
- A value in delta notation indicating the relative abundances of isotopes.
- The set of differences between two versions of a file. · When you update the file, the system will only save the deltas.
- A small but noticeable effect. Compare epsilon. · This will slow the main code path down, but only by delta.
- The angle subtended at the center of a circular arc.
Plural deltas
From the library
The Mississippi Delta is widely recognized as the undisputed birthplace of modern American music.
Simultaneously, pioneering radio stations started broadcasting these innovative tracks, exposing the distinct Delta sound to listeners far beyond the city limits.
By fusing the emotional depth of the Delta blues with upbeat tempos and amplified instrumentation, musicians inadvertently invented rock and roll.
Today, every distorted guitar solo and driving rock anthem owes a profound debt of gratitude to those intrepid Delta musicians.
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