This site from Whatis.com provides a great definition of cartesian coordinates. The definition is medium-sized in length and has links to additional information as well.

Detailed math tutorial features notes and examples that take a look at the Cartesian (or Rectangular) coordinate system. Provides definitions of ordered pairs, coordinates, quadrants, and x and y-intercepts.

[Free Registration/Login may be required to access all resource tools.] Definition of polar coordinates, plotting points on a polar coordinate graph

This site, which is provided for by the University of Tennessee, shows you how to use the polar coordinate system.

This site gives the focus/directrix definition of a conic. Also includes specific definition for the parabola, ellipse, and hyperbola. Includes equations for the conics in both rectangular and polar coordinates.

Shows a way to graph polar equations using rectangular coordinates first.

Advanced discussion of the components of a vector on a three dimensional plane is available here along with formulas and properties.

[Free Registration/Login may be required to access all resource tools.] Here you will learn how to convert complex numbers from rectangular form to polar form. You will also explore the graphs of complex numbers on a polar graph.

Using vectors as a starting point, this site demonstrates how complex numbers can be written in polar form. Several examples are included that require you to write complex numbers in polar and rectangular form and also represent them...

Hotmath provides 26 practice problems relating to conic sections. Each of the practice problems include a step-by-step guide for solving their conic.

This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...

The system created by Rene Descartes (1596-1650 CE) is explored in depth, covering topics such as definitions, notation, evaluating, domain and range, graphing and more. Interactive examples and demonstrations are enhanced using Live...

Rainforest at the Crossroads: Simulate the motion of an animal using a rectangular object placed at different positions on the floor. Then measure and graph the animal's coordinates, and examine its path.

The free mathematics tutorial explores the unit circle and trigonometric functions. The tutorial consists of definitions and examples with solutions. The interactive applet allows students to investigate domain, range, and asymptotes of...

This resource features information on the point-slope form in geometry. It provides a good definition, several examples, and information on various forms.

This animated tutorial gives the focus/directrix definition of a conic. Also includes specific definition for the parabola, ellipse, and hyperbola. Includes equations for the conics in both rectangular and polar coordinates.