Question about Texas Instruments TI-84 Plus Calculator

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My trignometery calculations are off by one-two points. What can I do to fix it.

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I am not quite sure what you mean by "OFF BY ONE-TWO POINTS".
If you have a problem of "precision" you can increase the number of digits that the calculator displays.

  1. Press [MODE]
  2. Use down arrow to highlight the line FLOAT 0 1 2 3 4 5 6 7 8 9
  3. Use right arrow to move cursor to one of the numbers on the line and press [ENTER].
  4. The number you will select will set the number of decimal digits displayed.
Keep in mind though that most of the "precision" one may be seeking is illusory.

When doing trigonometric calculations make sure the angle unit set in the calculator is the one your problem requires (deg, radian.)

Posted on Sep 19, 2010


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