Contains both general and detailed information about the complex plane.

The world of complex numbers is explored through mini lessons, interactive examples, applications and demonstrations. Topics covered include definitions, basic operations, graphing, different forms of complex numbers, products,...

Contains a brief summary about the real and imaginary parts of complex numbers.

Provides an explanation, examples, and a video lesson all related to complex numbers.

Learn about imaginary numbers with this handy reference guide. Provides a detailed definition and examples that enhance further explanation. Includes links to related topics.

A complete explanation of complex numbers that includes lessons on adding, subtracting, multiplying, and dividing them, as well as more advanced topics.

An advanced look into the complex plane, with detailed examples.

Multiply complex numbers by single terms that are either real or imaginary. Students receive immediate feedback and have the opportunity to try questions repeatedly or receive hints.

Multiply complex numbers by single terms that are either real or pure imaginary.

At MathWords.com, a definition is given for what complex numbers are, along with some examples.

[Free Registration/Login may be required to access all resource tools.] A collection of resources for learning about and practicing how to multiply and divide complex numbers.

This lesson helps students distinguish between strictly complex numbers, strictly real numbers and strictly imaginary numbers while learning that real numbers and imaginary numbers are subsets of the set of complex numbers.

Simplify a power of a complex number z^n, or solve an equation of the form z^n=k. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

A description of the complex plane is given with examples of how to plot complex numbers. Also included is an explanation of how to add complex numbers graphically.

Simplify expressions with base i (the imaginary unit) raised to a positive exponent.

A brief explanation of complex numbers.

Contains a brief summary on the origin of complex numbers.

Resource defines numbers into two main categories, counting numbers and scalars. It also gives examples of number notation.

Contains the definition and a picture for what a complex plane is.

This math site from Mathworld.com explains what a square root is including information on imaginary numbers and many links. This site also addresses the continued fractions of positive real square roots, in particular the square root of...

Learn about real numbers with this helpful reference tool. Provides a detailed definition and an interactive activity that enhances further explanation. Includes links to related topics.