# Rectangular

## 2D Coordinate Systems

#### Description

The Rectangular is a two-dimensional coordinate system that defined by an ordered pair of perpendicular lines (axes), a single unit of length for both axes, and an orientation for each axis.
Also explore cartesian coordinate system in three dimensions.

### Mapping

\{x\to x,y\to y\}
$<mrow> <mo>{</mo> <mrow> <mrow> <mi>x</mi> <semantics> <mo>&#8594;</mo> <annotation encoding='Mathematica'>&quot;\[Rule]&quot;</annotation> </semantics> <mi>x</mi> </mrow> <mo>,</mo> <mrow> <mi>y</mi> <semantics> <mo>&#8594;</mo> <annotation encoding='Mathematica'>&quot;\[Rule]&quot;</annotation> </semantics> <mi>y</mi> </mrow> </mrow> <mo>}</mo> </mrow>$
{x -> x, y -> y}
[x = x, y = y]

### Cite this as:

2D Coordinate Systems: Rectangular from Differential Geometry Library. http://digi-area.com/DifferentialGeometryLibrary/2DCoordinateSystems/Rectangular.php