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Odds & Ends Group I Group II Would you like to show yourself or others how to be algebra power users?
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The following applet shows how to multiply and add complex numbers (vectors in the plane). See instructions below. Hit help twice to go to a lesson on complex numbers.
For multiplication, add the angles and multiply the lengths to get the product. Hit the button C=A*B twice to turn on and off the arc illustration of angle addition. The illustration works best when both factors are in the first quadrants. Hit the button C=A+B to again and again to alternate between illustrations of the head-to-tail method and the component method for vector addition. Now experiment or play. The help button will take you away from this web directory to another explanation of complex numbers. |
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