Cuemath
Cuemath: Complex Numbers
A comprehensive guide for learning all about complex numbers with definitions, operations on complex numbers, solved examples, and practice questions.
Wolfram Research
Wolfram Math World: Complex Plane
This math site gives a visual representation of a complex plane with several values plotted, the site explains that any complex number can be plotted on such a plane. The site contains links to related words and topics.
Wolfram Research
Wolfram Math World: Complex Conjugate
This site contains an explanation of complex conjugates. Then it goes on to list and display charts and formulas. Links are also provided for additional information.
Wolfram Research
Wolfram Math World: Imaginary Number
Contains a brief definition of an imaginary number. Includes special links and topic search engine.
Math Medics
S.o.s. Math: The Complex Plane
Contains a lesson and practice exercises about complex numbers in a complex plane.
Wolfram Research
Wolfram Math World: Complex Number
This MathWorld site give a thorough definition of complex numbers. The first paragraph explains the fundamental knowlege base and notation for complex numbers. The site discusses complex numbers in the phasor form, de Moivre's identity,...
Math Medics
S.o.s. Math: The Complex Numbers
This lesson may be useful to both persons with prior knowledge of complex numbers and those without. The lesson begins with the definition of complex numbers and its notation, then gives the rules of arithmetic for them with exercises....
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Numeros Complejos
In Spanish. In this unit you will be able to practice interactively the concept of complex numbers in binomial and polar forms.
McGraw Hill
Glencoe Mathematics: Quiz on the Complex Plane and Polar Form of Complex Numbers
The online assessment demonstrates knowledge of Trigonometry. The questions test students on the complex plane and polar form of complex numbers.
McGraw Hill
Glencoe Mathematics: Quiz on Powers and Roots of Complex Numbers
The online assessment exhibits knowledge of advanced mathematical concepts in Trigonometry. The questions evaluate students on powers and roots of complex numbers.
Johan Claeys
Math Abundance: An Introduction to Complex Numbers
A complete explanation of complex numbers that includes lessons on adding, subtracting, multiplying, and dividing them, as well as more advanced topics.
Discovery Education
Discovery Education: Web Math: Adding Complex Numbers
WebMath contains a program that calculates the addition of complex numbers by inputting the problem.
Discovery Education
Discovery Education: Web Math: Multiplying Complex Numbers
WebMath contains a program that calculates the multiplication of two or more complex numbers by inputting the problem.
CK-12 Foundation
Ck 12: Analysis: Imaginary Numbers
[Free Registration/Login may be required to access all resource tools.] In this lesson students will identify imaginary and complex numbers, basic evaluation of imaginary numbers. Students examine guided notes, review guided practice,...
CK-12 Foundation
Ck 12: Analysis: Products and Quotients of Complex Numbers
[Free Registration/Login may be required to access all resource tools.] This lesson covers multiplying and dividing complex numbers. Students examine guided notes, review guided practice, watch instructional videos and attempt practice...
Stanford University
The Complex Plane (Standford University)
Contains both general and detailed information about the complex plane.
Stanford University
Standford University: The Complex Plane
This resource contains both general and detailed information about the complex plane.
Texas Instruments
Texas Instruments: Powers and Roots of Complex Numbers
In this TI InterActive! activity, students explore the graphical and numerical representations of the powers of a complex number.
Clark University
Clark University: Complex Numbers: The Complex Plane
A number of different ways to approach complex numbers and operations with them.
Discovery Education
Discovery Education: Web Math: Subtracting Complex Numbers
WebMath offers a program that explains and calculates the subtraction of complex numbers.
Math Medics
S.o.s. Math: Factoring Over the Complex Numbers
S.O.S. Math provides information, including examples, on factoring over the complex numbers.
Johan Claeys
Math Abundance: A Representation of a Complex Number
Includes a short summary on the representation of a complex number.
Khan Academy
Khan Academy: Multiply & Divide Complex Numbers in Polar Form
Given two complex numbers in polar form, find their product or quotient. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.