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Matrices 471
second column of M5 to 728 and then display the
resulting matrix:
728
AQ5
R1o 2
E
An attempt to store an
element to a row or
column beyond the size of the matrix results in re-sizing the
matrix to allow the storage. Any intermediate cells will be
filled with zeroes.
To send a matrix You can send matrices between calculators just as you can
send apps, programs, lists, and notes. See “Sharing data”
on page 44 for instructions.
Matrix arithmetic
You can use the arithmetic functions (+, –, ×, ÷, and
powers) with matrix arguments. Division left-multiplies by
the inverse of the divisor. You can enter the matrices
themselves or enter the names of stored matrix variables.
The matrices can be real or complex.
For the next examples, store [[1,2],[3,4]] in M1 and
[[5,6],[7,8]] in M2.
Example 1. Select the first matrix:
St (Matrix)
Tap M1 or highlight it and press
E.
2. Enter the matrix
elements:
1
E 2
E 3 E
4
E