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<h1 align=center>Coordinate Systems</h1>
<font size="+1">C</font><font size="+0">onventionally, when you think of a coordinate system you think of a cartesian
coordinate system.  The main advantage of a cartesian coordinate system is that the
<a href="../vectors">unit vectors</a> are constant in direction.  However, not all
physical problems are best described using cartesian coordinates due to symmetries or constraints.
For instance, when solving a central force problem, such as the motion of a body due to a 
gravitational or electrostatic force, spherical or polar coordinates are more efficient.
</p>

<p>
In the pages in this section we will elaborate the details of several non-cartesian, or curvilinear coordinate
systems.  First we will briefly review cartesian coordinates and vector operators
and proceed on to curvilinear and non-orthogonal coordinate systems.
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<font face="helvetica,arial" size=+1>Contents</font>
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<ul>
	<li><a href=cartesian.html>Cartesian Coordinates</a>
		<ul>
		<li><a href=cartesian.html#volume>Area/Volume elements</a>
		<li><a href=cartesian.html#integral>Integrals</a>
		<li><a href=cartesian.html#diffop>Differential operators</a>
		</ul>
	<li><a href=curvilinear.html>Curvilinear Coordinate Systems</a>
		<ul>
		<li><a href=curvilinear.html>Definition</a>
		<li><a href=curvilinear.html#volume>Area/Volume elements</a>
		<li><a href=curvilinear.html#diffop>Differential operators</a>
		<li><a href=polar.html>Polar Coordinates</a>
			<ul>
			<li><a href=polar.html>Definition</a>
			<li><a href=polar.html#unitvectors>Unit Vectors</a>
			<li><a href=polar.html#volume>Area/Volume elements</a>
			<li><a href=polar.html#integral>Integrals</a>
			<li><a href=polar.html#diffop>Differential operators</a>
			</ul>
		<li><a href=cylindrical.html>Cylindrical Coordinates</a>
			<ul>
			<li><a href=cylindrical.html>Definition</a>
			<li><a href=cylindrical.html#unitvectors>Unit Vectors</a>
			<li><a href=cylindrical.html#volume>Area/Volume elements</a>
			<li><a href=cylindrical.html#integral>Integrals</a>
			<li><a href=cylindrical.html#diffop>Differential operators</a>
			</ul>
		<li><a href=spherical.html>Spherical Coordinates</a>
			<ul>
			<li><a href=spherical.html>Definition</a>
			<li><a href=spherical.html#unitvectors>Unit Vectors</a>
			<li><a href=spherical.html#volume>Area/Volume elements</a>
			<li><a href=spherical.html#integral>Integrals</a>
			<li><a href=spherical.html#diffop>Differential operators</a>
			</ul>
		</ul>
		<li><a href=nonorthogonal.html>Non-Orthogonal Coordinates</a>
</ul>
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