User Manual

1-22

• Math Input/Output Mode Input and Result Display in the EQUA Mode

You can use the Math input/output mode in the EQUA mode for input and display as shown

below.

• In the case of simultaneous equations (1(SIML)) and high-order equations (2(POLY)),

solutions are output in natural display format (fractions, ', π* are displayed in natural

format) whenever possible.

* fx-9860G

II SD/fx-9860GII/fx-9860G AU PLUS only

• In the case of Solver ( 3(SOLV)), you can use Math input/output mode natural input.

Example To solve the quadratic equation

+ 3x + 5 = 0 in the EQUA mode

mEQUA!m(SET UP)cccc(Complex Mode)

2(a+b

i)J2(POLY)1(2)bwdwfww

fx-9860GII SD/fx-9860GII/

fx-9860G AU PLUS

fx-9860GII s

5. Option (OPTN) Menu

The option menu gives you access to scientific functions and features that are not marked on

the calculator’s keyboard. The contents of the option menu differ according to the mode you

are in when you press the K key.

• The option menu does not appear if you press K while binary, octal, decimal, or

hexadecimal is set as the default number system.

• For details about the commands included on the option (OPTN) menu, see the “K key”

item in the “PRGM Mode Command List” (page 8-37).

• The meanings of the option menu items are described in the sections that cover each mode.

The following list shows the option menu that is displayed when the RUN • MAT (or RUN) or

PRGM mode is selected.

Item names below that are marked with an asterisk (*) are not included on the fx-7400G

II.

• {LIST} ... {list function menu}

• {MAT}* ... {matrix/vector

operation menu} (*

Not included on the fx-9750GII.)

• {CPLX} ... {complex number calculation menu}

• {CALC} ... {functional analysis menu}

• {STAT} ... {paired-variable statistical estimated value menu} (fx-7400G

II)

{menu for paired-variable statistical estimated value, distribution, standard

deviation, variance, and test functions} (all models except fx-7400GII)

• {CONV} ... {metric conversion menu} (all models except fx-9860G

II s)

• {HYP} ... {hyperbolic calculation menu}

• {PROB} ... {probability/distribution calculation menu}

• {NUM} ... {numeric calculation menu}