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Math Help - Converting Polar to Rectangular

  1. #1
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    Converting Polar to Rectangular

    Hi Guys,

    I'm trying to figure out how to convert a polar number to a rectangular number and vice-versa using the Texas Instruments TI-83 Plus calculator.

    Can anyone help me here?
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  2. #2
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    under the angle menu, look at #7 and #8 items ...

    7. syntax is ... P "arrow" Rx(r, theta)
    where r is the ray length and theta is the ray angle relative to the x-axis. output is the x-coordinate.

    8. syntax is ... P "arrow" Ry(r, theta)
    output is the y-coordinate.

    items #5 and #6 under the same menu convert rectangular to polar ... input is R "arrow" Pr(x,y) and R "arrow" P theta (x,y) respectively; output is r for #5 and theta for #6.

    don't forget to check the mode switch for the correct form for angles you're using, degrees or radians.
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  3. #3
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    Ok, I found the menu but I'm not sure how to input the numbers.

    For example, I have the rectangular number 1 + j1
    How would I input that into the caluculator to get me the polar number?
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  4. #4
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    Success!

    Figured it out - it's not the Angle menu, it's the math menu and you have to use 'i' after the imaginary term.
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