Question about Texas Instruments TI-84 Plus Silver Edition Graphic Calculator
It wont let me use any buttons and the cursor wont move. it is like it is frozen but the cursor blinks
$10 at most general stores, if you are in the US
Posted on Dec 12, 2007
Tips for a great answer:
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First, Press the "MATRX" button
Next, enter a matrix into the calculator. To enter a matrix, press the arrow that points to the right two times when the cursor highlights letter "A." This moves the top cursor to "Edit." Press "Enter" to select the "Edit" option.
Next,, enter the matrix's numbers into the matrix on the calculator. Press "Enter" to move the cursor over one column. Press a button that has a dash symbol within parenthesis [( - )] to move down one row. Repeat the steps until the matrix is completed.
Next, Press "2nd" then "Mode" to go back to the home screen. Press "MATRX" to enter the matrix screen again.
Finally, press "Enter" when the cursor highlights matrix "A" then press "[x^ -1]." Your screen should read "[A]^ -1." Press "Enter" again to display the inverse matrix.
I got this information from eHow.com
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