FACTOID # 128: Peru’s national bird is the Andean cock of the rock (Rupicola peruviana).
 
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Encyclopedia > Closed form

In mathematics, closed form can mean:


  Results from FactBites:
 
PlanetMath: closed form (236 words)
This is in contrast to the recurrence relation form, which can have all of the previous values of the sequence as parameters.
The benefit of the closed form is that one does not have to calculate all of the previous values of the sequence to get the next value.
This is version 3 of closed form, born on 2001-11-04, modified 2002-03-08.
Crystal Form, Zones, & Habit (3271 words)
An octahedron is an 8 faced form that results form three 4-fold axes with perpendicular mirror planes.
The form symbol for a dodecahedron is {110}.
The tetrahexahedron is a 24-faced form with a general form symbol of {0hl} This means that all faces are parallel to one of the a axes, and intersect the other 2 axes at different lengths.
  More results at FactBites »


 

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