Casio FX-CG20 User Manual

16
Numerical Equation Solver
The “Equation”- application is used for the numerical solving of
equations. Three types of equations can be solved:
–
(
Uniquely solvable
)
Linear Equation systems with 2-5 Unknowns.
– Polynomial equations 2-6 Order.
– General Equations
(
Solver
)
Selecting the Type of Equation
Once the “Equations”- application is opened, a selection bar will
appear. Select the Equation type with
[
F1
]
-
[
F3
]
Linear Equation system
(
Simultaneous
)
Before values are entered, the numbers of the unknowns
must be entered.
The input pattern is displayed at the top of the screen.
Note: The “Equations”- application computes the unique solution,
detachable LGS. To determine the over or under certain LGS,
the Matrix notation and Rref-command is required.
(
vgl. S.17
)
Polynomial Equations
2-6 Grades from the polynomial equations can be solved. The input
pattern is displayed at the top of the screen.
General Equations
(
solver
)
Input an equation
(
equality sign:
[
SHIFT
] [
.
])
and enter the
start value for the calculation. Solve the equation by pressing
[
F6
]
(
SOLVE
)
Numerical Equations solver
•
Linear Equation system
• Polynomial Equations
• General Equations

Casio FX-CG20 Specifications

General

Type	Graphing
Form factor	Pocket
Product color	Black
Digits	- digits
Display tilting	No
Display number of lines	8 lines
Display number of characters	21
Flash memory	16 MB
Internal memory	0.01562 MB
Battery type	AAA
Power source	Battery
Battery technology	Alkaline
Number of batteries supported	4
USB port	Yes

Weight and Dimensions

Weight	230 g
Dimensions (WxDxH)	89.5 x 20.6 x 188.5 mm