A small portion of the Cartesian coordinate system, showing the origin, axes, and the four quadrants, with illustrative points and grid. Part of a series in <a href="//commons.wikimedia.org/wiki/User:Kismalac/conjuntos" title="User:Kismalac/conjuntos">elementary mathematics</a>.
<ul><li><a href="//commons.wikimedia.org/wiki/File:Cartesian-coordinate-system.svg" title="File:Cartesian-coordinate-system.svg">Cartesian-coordinate-system.svg</a>: K. Bolino</li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Kismalac" title="User:Kismalac">kismalac</a></li></ul>
<ul><li><a href="//commons.wikimedia.org/wiki/File:Cartesian-coordinate-system.svg" title="File:Cartesian-coordinate-system.svg">Cartesian-coordinate-system.svg</a></li></ul>