Casio fx-5800P k Sequence Calculation Overview, A Squaring a Matrix

					a22a33 – a23a32		–a12a33 + a13a32		a12a23 – a13a22
a11	a12	a13	–1		–a21a33	+ a23a31	a11a33	– a13a31	–a11a23	+ a13a21
					a21a32	– a22a31	–a11a32	+ a12a31	a11a22	– a12a21
a21	a22	a23	=
				a11a22a33 + a12a23a31 + a13a21a32 – a13a22a31 – a12a21a33 – a11a23a32
a31	a32	a33

Important!

•Matrix inversion is supported for a non-zero square matrix only.

•Use the !)(x–1) key to input “–1”.

Example: To invert the matrix 15 –20 .

This example assumes that Mat C contains 15 –20 .

Mat C!)(x–1)E

A Squaring a Matrix

You can use the procedure shown below to square a matrix.

Important!

Use the x key to specify the squaring operation.

Example: To square the matrix 15 –20 .

This example assumes that Mat C contains 15 –20 .

Mat CxE

Sequence Calculations (RECUR)

To perform the example operations in this section, first select RECUR (N6) as the calculation mode.

k Sequence Calculation Overview

You can use either of the two following sequence types to create a sequence table.

1an Type Sequence

With this sequence type, you input the general term of the sequence (an = f (n)), along with a sequence start value and end value.

2an+1 Type Sequence

With this sequence type, you input the recursion formula for two-term recursion (an+1 = f (an)), along with a sequence start value and end value.

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