Controls
  1. Your Guess:  Operation
  2. Your Guess:  r
  3. Your Guess:  theta
  4. New Quiz
  5. Show Rect Form
  6. Show Vector Sum
  7. Show Vector Diff
  8. Show Answer
  9. INPUT #1
  10. INPUT #2
  11. Vector Color Legend
  12. Plot Box:   Inputs
  13. Plot Box:   Resultant
  14. Answer Menu
  15. Options Menu:  Level
  16. Options Menu:  Set Arrow Width
  17. Help Menu:  Contents
  Your Guess:  Operation

This menu may be used to specify the type of operation that the user is being quizzed on.

Choices include the following:

  • Add
  • Subtract
  • Multiply
  • Divide
  • Inverse
  • Conjugate

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      Your Guess:  r

    A guess for the magnitude (radius) of the complex vector may be entered in this field, either as a number or valid arithmetic expression.

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      Your Guess:  theta

    A guess for the phase of the complex vector may be entered in this field, either as a number or valid arithmetic expression.

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      New Quiz

    Pressing this button will generate a new pair of quiz vectors for the user.

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      Show Rect Form

    Checking this box will reveal the rectangular form of the input vectors, and of the user's guess.  Unchecking it will hide the rectangular form.

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      Show Vector Sum

    This checkbox will only appear if the Add option is selected under the Operation menu.  Checking it will plot the input vectors in the Resultant Plot Box in head-to-tail fashion so that it is easier to visualize the resultant sum vector.

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      Show Vector Diff

    This checkbox will only appear if the Subtract option is selected under the Operation menu.  Checking it will plot the input vectors in the Resultant Plot Box in head-to-tail fashion so that it is easier to visualize the resultant difference vector.

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      Show Answer

    Checking this box will graphically plot the correct resultant vector in the Resultant Plot Box as a black arrow so that the user's guess can be compared to it.

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      INPUT #1

    Input vector z1 for the quiz is displayed under this red title in polar form. You may also display the rectangular form by checking the Show Rect Form box.

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      INPUT #2

    Input vector z2 for the quiz is displayed under this pink title in polar form. You may also display the rectangular form by checking the Show Rect Form box.

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      Vector Color Legend

    This boxed area under the Show Answer checkbox displays a legend for the colors of all the arrows representing the vectors in the quiz.

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      Plot Box:  Inputs

    This plot displays the input complex vectors for the quiz.

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      Plot Box:  Resultant

    This plot displays the resultant vector guessed by the user as a blue arrow.  It may be updated either by clicking on it after changing a guess value, or pressing Enter in the text field immediately after changing a guess value.  The correct resultant may also be displayed as a black arrow if the Show Answer box is checked.

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      Answer Menu

    This menu displays the actual magnitude, phase, and rectangular form of the resultant vector appropriate to the choice selected in the Operation menu.

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      Options Menu:  Level

    This menu item will reveal two options:  Novice or Pro.  Whichever option is checked will determine the difficulty level of the quizzes produced by pressing the New Quiz button.

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      Options Menu:  Set Arrow Width

    This menu item enables adjustment of the arrow line widths.  Enter a value in the text field to specify the thickness of the arrows.  Pressing OK will close the window and apply the new arrow width to the gui; pressing Cancel will close the window, making no changes to the previous arrow width.

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      Help Menu:  Contents

    Pressing this button will launch the host computer's internet browser and to load the index.html page found in the help directory. If an error occurs you can manually load the page into your browser.

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