concavity
Noun
Meaning
A concave surface, or the space bounded by it; the state of being concave.
Source: Webster's dictionarySynonyms
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Fingerboards are dressed to a particular transverse curve, and have a small lengthwise "scoop," or concavity, slightly more pronounced on the lower strings, especially when meant for gut or synthetic strings.
Below are two approaches to understanding the concavity of the surface of rotating water in a bucket.
However, if P happens to be an inflection point (a point where the concavity of the curve changes), we take R to be P itself and P + P is simply the point opposite itself.
Increasing their concavity makes them more aggressive.
In other words, it is not the relative motion of the pail and water that causes concavity of the water, contrary to the idea that motions can only be relative, and that there is no absolute motion.
Polynomial graphs are analyzed in calculus using intercepts, slopes, concavity, and end behavior.