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Peak vs Convex - What's the difference?

peak | convex |

As nouns the difference between peak and convex

is that peak is a point; the sharp end or top of anything that terminates in a point; as, the peak, or front, of a cap while convex is any convex body or surface.

As a verb peak

is to reach a highest degree or maximum or peak can be to become sick or wan or peak can be .

As an adjective convex is

curved or bowed outward like the outside of a bowl or sphere or circle.

peak

English

(wikipedia peak)

Etymology 1

Noun

(en noun)
  • A point; the sharp end or top of anything that terminates in a point; as, the peak, or front, of a cap.
  • The highest value reached by some quantity in a time period.
    • The stock market reached a peak in September 1929.
  • * 2012 October 23, David Leonhardt, "[http://www.nytimes.com/2012/10/24/us/politics/race-for-president-leaves-income-slump-in-shadows.html?_r=1&hp]," New York Times (retrieved 24 October 2012):
    • By last year, family income was 8 percent lower than it had been 11 years earlier, at its peak in 2000, according to inflation-adjusted numbers from the Census Bureau.
  • (geography) The top, or one of the tops, of a hill, mountain, or range, ending in a point; often, the whole hill or mountain, especially when isolated; as, the Peak of Teneriffe.
  • (nautical) The upper aftermost corner of a fore-and-aft sail; -- used in many combinations; as, peak-halyards, peak-brails, etc.
  • (nautical) The narrow part of a vessel's bow, or the hold within it.
  • (nautical) The extremity of an anchor fluke; the bill.
  • (mathematics) A local maximum of a function, e.g. for sine waves, each point at which the value of y is at its maximum.
    • Synonyms
    * apex, pinnacle, top, summit * See also
    Derived terms
    * peakless * peaklike * peakwise

    Verb

    (en verb)
  • To reach a highest degree or maximum.
    • Historians argue about when the Roman Empire began to peak and ultimately decay.
  • To rise or extend into a peak or point; to form, or appear as, a peak.
  • * Holland
    • There peaketh up a mighty high mount.
    Synonyms
    * culminate
    Derived terms
    * off-peak

    Etymology 2

    Verb

    (en verb)
  • To become sick or wan.
  • To acquire sharpness of figure or features; hence, to look thin or sickly.
  • * Shakespeare
    • Dwindle, peak , and pine.
  • To pry; to peep slyly.
    • (Shakespeare)

    Etymology 3

    Verb

    (en verb)

    • convex

    English

    Adjective

    (en adjective)
  • curved or bowed outward like the outside of a bowl or sphere or circle
  • * Whewell
    • Drops of water naturally form themselves into figures with a convex surface.
  • (mathematics, not comparable, of a set) arranged such that for any two points in the set, a straight line between the two points is contained within the set.
  • (geometry, not comparable, of a polygon) having no internal angles greater than 180 degrees.
  • (functional analysis, not comparable, of a real-valued function on the reals) having an epigraph which is a convex set.

    • Antonyms

    * concave

    Derived terms

    * convex combination * convex set

    Noun

    (es)
  • Any convex body or surface.
  • * Tickell
    • Half heaven's convex glitters with the flame.

    References

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