STo convert a displayed value from one number system to another

Example

To convert 2210 (default number system) to its binary or octal value

K(SET UP)

Move the highlighting to “Mode”, and then press (Dec)).

(d~o)(d)AAU

)(DISP)(Bin)U

(Oct)U

8. Matrix Calculations

Important!

• Matrix calculations cannot be performed on the fx-7400GII.

From the Main Menu, enter the RUN • MAT mode, and press (MAT) to perform Matrix calculations.

26 matrix memories (Mat A through Mat Z) plus a Matrix Answer Memory (MatAns), make it possible to perform the following matrix operations.

Addition, subtraction, multiplication, division

Scalar multiplication calculations

Determinant calculations

Matrix transposition

Matrix inversion

Matrix squaring

Raising a matrix to a specific power

Absolute value, integer part extraction, fractional part extraction, maximum integer calculations

Inputting complex numbers in matrix elements and using complex number related functions

Matrix modification using matrix commands

The maximum number of rows that can be specified for a matrix is 999, and the maximum number of columns is 999.

About Matrix Answer Memory (MatAns)

The calculator automatically stores matrix calculation results in Matrix Answer Memory. Note the following points about Matrix Answer Memory.

Whenever you perform a matrix calculation, the current Matrix Answer Memory contents are replaced by the new result. The previous contents are deleted and cannot be recovered.

Inputting values into a matrix does not affect Matrix Answer Memory contents.

2-36