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Getting Started 37
Using the MATRIX Editor
Creating a new matrix
Note: When you press Í, the cursor automatically highlights the
next cell so that you can continue entering or editing values. To enter a
new value, you can start typing without pressing Í, but you must
press Í to edit an existing value.
Using matrices to solve systems of equations
You can solve several equations simultaneously by entering their
coefficients into a matrix and then using the
rref (reduced row-echelon
form) function. For example, in the equations below, enter 3, 3, and 24
(for 3X, 3Y, and 24) in the first row, and 2, 1, 13 (for 2X, 1Y, and 13) in the
second row.
Press Result
y > |
Í
2 Í 2 Í
1 Í 5 Í
2 Í 8 Í