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Topic: Periodic function


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In the News (Sun 22 Nov 09)

  
  AllRefer Health - Medical Encyclopedia - P-Pl
Painful Menstrual Periods - Adolescent (Dysmenorrhea in the Adolescent)
Periods - Heavy, Prolonged, or Irregular (Menstrual Periods - Heavy, Prolonged, or Irregular)
Periods - Painful (Adolescent) (Dysmenorrhea in the Adolescent)
health.allrefer.com /health/health-topics-p.html   (500 words)

  
  Periodic Function -- from Wolfram MathWorld
is said to be periodic (or, when emphasizing the presence of a single period instead of multiple periods, singly periodic) with period
Periodic Point, Periodic Sequence, Singly Periodic Function, Triply Periodic Function.
Spanier, J. and Oldham, K. "Periodic Functions." Ch.
mathworld.wolfram.com /PeriodicFunction.html   (151 words)

  
  Periodic Functions
Periodic functions are functions that repeat over and over, or cycle on a specific period.
The fundamental period of a function is the length of a smallest continuous portion of the domain over which the function completes a cycle.
The amplitude of a periodic function is the distance between the highest point and the lowest point, divided by two.
library.thinkquest.org /2647/algebra/ftperiod.htm   (694 words)

  
 PlanetMath: quasiperiodic function
Except for the special case of periodicity noted above, the notion of quasiperiodicity is somewhat loose and fuzzy.
Also note that almost periodic functions are quite a different affair than quasiperiodic functions -- there, one is dealing with a precise notion.
This is version 8 of quasiperiodic function, born on 2004-10-03, modified 2006-10-05.
planetmath.org /encyclopedia/QuasiperiodicFunction.html   (201 words)

  
 SparkNotes: Functions: Terms
The inverse of a function or relation can be found by interchanging the variables in the function or relation.
Periodic Function - A function is periodic if and only if f (x) = f (x + c), for all values x, where c is a constant.
Undefined - A function is undefined at a given value of its independent variable if for that value, there is no output--this occurs when a particular input creates a situation in which there is division by zero, or an even root of a negative number, for example.
www.sparknotes.com /math/precalc/functions/terms.html   (467 words)

  
 MGE UPS SYSTEMS - Glossary
Ratio between the rms value of all harmonics of a non-sinusoidal alternating periodic value and that of the fundamental.
Filtering is superior to that of a traditional filter of the L or C type.
Theorem stating that any non-sinusoidal periodic function (frequency f) may be represented as a sum of terms (series) made up of: n a sinusoidal term with frequency f, called the fundamental frequency, n sinusoidal terms with frequencies that are whole multiples of the fundamental frequency, (harmonics), n a possible DC component.
www.mgeups.com /techinfo/glossary/menu.htm   (2614 words)

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