HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Pobierz pdf (Strona 575)

100

101

Multiplying two matrices

To multiply the two matrices that you created for the previous example, press the following keys:

1 2

To multiply a matrix by a vector, enter the matrix rst, then the vector. The number of elements in the vector

must equal the number of columns in the matrix.

Raising a matrix to a power

You can raise a matrix to any power as long as the power is an integer. The following example shows the

result of raising matrix M1, created earlier, to the power of 5.

1 5

You can also raise a matrix to a power without rst storing it as a variable.

Matrices can also be raised to negative powers. In this case, the result is equivalent to 1/

[matrix]^ABS(power). In the following example, M1 is raised to the power of –2.

Matrix arithmetic 527

1 2 ... 570 571 572 573 574 575 576 577 578 579 580 ... 700 701

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