Equation Calculations - Casio fx-115ES User Manual

Casio fx-115es fx-991es calculator user's guide
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Press this key: When you want to input this:
5(Not)
6(Neg)
• Negative binary, octal, and hexadecimal values are produced by
taking the binary two's complement and then returning the result
to the original number base. With the decimal number base,
negative values are displayed with a minus sign.
Appendix
Examples <#085> through <#090> show examples of calculations
with negative binary values and examples of logical operations.
Before starting each calculation, be sure to press Ab first.

Equation Calculations

All calculations in this section are performed in the EQN Mode
(N5).
k Equation Types
An equation type menu appears when you press N5(EQN) and
enter the EQN Mode.
Key
1
a
X + b
n
2
a
X + b
n
2
3
aX
3
4
aX
Changing the Current Equation Type Setting
Press N5(EQN) to re-enter the EQN Mode. This clears all current
EQN Mode input and displays the equation type menu described
above.
"Not(" function, which returns the result of a
bitwise complement
"Neg(" function, which returns the result of a
two's complement
Menu Item
Y = c
n
n
Y + c
Z = d
n
n
+ bX + c = 0
2
+ bX
+ cX + d = 0
Simultaneous Linear
Equations with Two
Unknowns
Simultaneous Linear
Equations with Three
n
Unknowns
Quadratic Equation
Cubic Equation
E-55
(EQN)
Equation Type

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