Question about Texas Instruments TI-83 Plus Calculator
My cursor looks like a bunch of dots in a square and I cannot enter any numbers or letters. How can I fix this? Thanks!
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Posted on Jan 02, 2017
Tips for a great answer:
Mar 23, 2012 | Texas Instruments TI-84 Plus Silver...
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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