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Patterns are also related to repeated shapes or objects, sometimes referred to as elements of the series.  Some patterns (for example, many visual patterns) may be directly observable, such as simple decorative patterns (stripes, zigzags, and polka-dots).  Others can be more complicated, such as the regular tiling of a plane, echos, and balanced binary branching.

Patterns are also related to repeated shapes or objects, sometimes referred to as elements of the series.  Some patterns (for example, many visual patterns) may be directly observable, such as simple decorative patterns (stripes, zigzags, and polka-dots).  Others can be more complicated, such as the regular tiling of a plane, echos, and balanced binary branching.

<center>For lessons on the [[topic]] of '''''Pattern''''', follow [http://nordan.daynal.org/wiki/index.php?title=Category:Pattern this link].</center>

<center>For lessons on the [[topic]] of '''''Pattern''''', follow [https://nordan.daynal.org/wiki/index.php?title=Category:Pattern this link].</center>

The most basic patterns are based on repetition and periodicity.  A single template, or cell, is combined with duplicates without change or modification.  For example, in aviation, a "holding pattern" is a flight path which can be repeated until the aircraft has been granted clearance for landing.

The most basic patterns are based on repetition and periodicity.  A single template, or cell, is combined with duplicates without change or modification.  For example, in aviation, a "holding pattern" is a flight path which can be repeated until the aircraft has been granted clearance for landing.