Casio FX-95ES PLUS User Manual

Important!
• Regression coefficient, correlation coefficient, and estimated value calculations can
take considerable time when there are a large number of data items.
Equation Calculations (EQN)
(fx-95ES PLUS only)
Y
ou can use the following procedure in the EQN Mode to solve
simultaneous linear equations with two or three unknowns, quadratic
equations, and cubic equations.
1. Press
(EQN) to enter the EQN Mode.
2. On the menu that appears, select an equation type.
To select this
calculation type:
Press this key:
Simultaneous linear
equations with two
unknowns
(a
n
X + b
n
Y = c
n
)
Simultaneous linear
equations with three
unknowns
(a
n
X + b
n
Y + c
n
Z = d
n
)
Quadratic equation (aX
2
+ bX + c = 0)
Cubic equation (aX
3
+ bX
2
+ cX + d = 0)
3. Use the Coefficient Editor that appears to input coefficient values.
• To solve 2x
2
+ x - 3 = 0, for example, press in step 2, and then
input the following for the coef
ficients (a = 2, b = 1, c = -3): 2
1
3 .
• To change a coefficient value you already have input, move the cursor
to the appropriate cell, input the new value, and then press .
• Pressing will clear all of the coefficients to zero.
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Casio FX-95ES PLUS Specifications

General

Model	FX-95ES PLUS
Category	Scientific Calculator
Digits	10+2 digits
Number of Functions	274
Memory	9 variables
Weight	95 g
Power Source	Solar and Battery
Key Type	Plastic
Battery Life	Approx. 3 years (based on 1 hour of use per day)