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Technology 
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John and Betty's Journey into ...

Complex Numbers (Trigonometry) 
Java Applet 
Activity 

[0]

A children's bookontheWeb from Australia, designed to introduce complex numbers in story form in a way that is intuitive and enjoyable for students. John, Betty, and their dog Trevor solve a series...
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Exploring Precalculus with The...

Complex Numbers (Trigonometry) 
Sketchpad 
Activity 
$ 
[0]

The 56 activities in this collection give students the opportunity to directly experience, through dynamic visualization and manipulation, the topics covered in precalculus. It finishes with a dynami...
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Adding and Subtracting Complex...

Complex Numbers (Trigonometry) 
Flash 
Support Material 

[0]

This minilesson explains how to add or subtract complex numbers.
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Imaginary Unit (Algebra II)

Complex Numbers (Trigonometry) 
Flash 
Support Material 

[0]

This minilesson explains the basics of complex numbers and the concept of an imaginary unit.
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Multiply and Divide the Comple...

Complex Numbers (Trigonometry) 
Flash 
Support Material 

[0]

This lesson explains how to multiply or divide complex numbers.
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Plotting Complex Numbers on a ...

Complex Numbers (Trigonometry) 
Flash 
Support Material 

[0]

This minilesson explains how to plot complex numbers in the 2D plane.
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Graphing Calculator (formerly ...

Complex Numbers (Trigonometry) 
Computer 
Tool 
$ 
[1]

A very powerful graphing program that is also especially easy to use. You can graph functions in two or more dimensions using different kinds of coordinates. You can make animations and save as movies...
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Adding and Subtracting Complex...

Complex Numbers (Trigonometry) 
Flash 
Tool 

[2]

Flashbased introduction to adding and subtracting complex numbers. College Cram charges access fees by the month or by the semester for most resources. This one, though, is free. To get a preview...
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Dividing Complex Numbers

Complex Numbers (Trigonometry) 
Flash 
Tool 

[0]

Flash tutorial introducing complex conjugates, and showing how they are used in dividing complex numbers. College Cram charges access fees by the month or by the semester for most resources. To ge...
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Multiplying Complex Numbers

Complex Numbers (Trigonometry) 
Flash 
Tool 

[0]

Flash tutorial introducing multiplication of complex numbers by real numbers and by other complex numbers. College Cram charges access fees by the month or by the semester for most resources. To g...
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The Imaginary Number i

Complex Numbers (Trigonometry) 
Flash 
Tool 

[0]

Flash tutorial introducing i: definition, square roots of negative integers, raising i to powers, and complex numbers. College Cram charges access fees by the month or by the semester for most res...
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Complex Numbers

Complex Numbers (Trigonometry) 
Java Applet 
Tool 

[1]

This tool lets students see how complex numbers are added, subtracted, and multiplied graphically. They are asked to describe what has happened when complex numbers are added, subtracted, and mulitpl...
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Complex Numbers Applet

Complex Numbers (Trigonometry) 
Java Applet 
Tool 

[0]

This applet does symbolic calculation of complex numbers. This means that you can enter integers and fractions for the component values of a complex number (real and imaginary). Values with numbers th...
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eCalc Online Scientific Calcul...

Complex Numbers (Trigonometry) 
JavaScript 
Tool 

[0]

eCalc is a free interactive online calculator that is suitable for university students and professionals. It contains many advanced features, including support for complex numbers, unit conversion...
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De Moivre's Theorem (Getting S...

DeMoivre?'s Theorem (Trigonometry) 
Flash 
Support Material 

[0]

This minilesson explains De Moivre's Theorem: a complex number raised to a given positive integral power is equal to the modulus of the number raised to the power multiplied by the amplitude times th...
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Using De Moivre's Theorem (Tri...

DeMoivre?'s Theorem (Trigonometry) 
Flash 
Support Material 

[0]

This minilesson explains how to use De Moivre's Theorem to change complex numbers into standard form, by way of the polar form.
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Complexity

Operations in Trig Form (Trigonometry) 
JavaScript 
Support Material 

[0]

This support material shows the user the properties of complex numbers and provides "notes" that prove some of these properties.
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Complex Numbers

Operations in Trig Form (Trigonometry) 
Java Applet 
Tool 

[1]

This tool lets students see how complex numbers are added, subtracted, and multiplied graphically. They are asked to describe what has happened when complex numbers are added, subtracted, and mulitpl...
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The Complex Number System (Tri...

Rectangular Form (Trigonometry) 
Flash 
Support Material 

[0]

This lesson explains complex numbers, their operations and properties, and their relation to rectangular coordinates.
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Complexity

Rectangular Form (Trigonometry) 
JavaScript 
Support Material 

[0]

This support material shows the user the properties of complex numbers and provides "notes" that prove some of these properties.
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Multiplication of Complex Numb...

Trig or Polar Form (Trigonometry) 
Flash 
Support Material 

[0]

This minilesson explains how to multiply complex numbers written in trigonometric form.
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Polar Form of Complex Numbers ...

Trig or Polar Form (Trigonometry) 
Flash 
Support Material 

[0]

This minilesson explains how to write complex numbers in polar form in terms of a distance from the origin and a direction (or angle) from the positive horizontal axis.
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Complexity

Trig or Polar Form (Trigonometry) 
JavaScript 
Support Material 

[0]

This support material shows the user the properties of complex numbers and provides "notes" that prove some of these properties.
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Roots of Complex Numbers (Trig...

nth roots (Trigonometry) 
Flash 
Support Material 

[0]

This minilesson explains how to find roots of complex numbers.
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