18-6 Matrices
To store one
element
In HOME, enter, value matrixname(row,column).
For example, to change the element in the first row and
second column of M5 to 728, then display the resulting
matrix:
728
M512
M5 .
An attempt to store an element to a row or column beyond
the size of the matrix results in an error message.
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]] into M1 and
[[5,6],[7,8]] into M2.
Example 1. Create the first matrix.
MATRIX
1 2
3 4
2. Create the second
matrix.
MATRIX
5 6
7
8
3. Add the matrices that
you created.
hp40g+.book Page 6 Friday, December 9, 2005 12:27 AM
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