Question about Texas Instruments TI-83 Plus Calculator
Posted on Feb 03, 2010
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Sorry, a 3X3 matrix cannot have 4 columns and 3 rows. The first dimension is the number of rows. The second dimension is the number of columns. The matrix you want is a 3X4. Repeate what I described or open trhe matrix for editing and use up arrows to change the m and n.
OOPS On last line of previous comment read Repeat not Repeate
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Posted on Jan 02, 2017
Apr 14, 2011 | Casio FX-115ES Scientific Calculator
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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