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Casio FX-CG20 User Manual

Casio FX-CG20
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13
Matrices in a Natural Display
The input mode, “ Natural Display” provides a simple method for
calculations with matrices.
Entering Matrices
Access the Matrix template with:
[
F4
]
(
MATH
)
[
F1
]
(
MAT
)
.
Selection of rows-
(
m
)
and number of columns
(
n
)
with
[
F1
]
to
[
F3
]
and input the matrix entries using the Cursors.
The matirx can use the assignment arrow of a matrix variable,
e.g. Mat A, is assigned.
Edit the Matrix Entries
The matrix of the variables are assigned, and will be stored in the
matrix editor and can be edited.
[
F3
]
(
> MAT
)
, Select Matrix,
[
EXE
]
Calculations with Matrices in the Natural Display
Enter a command and the matrix or matrix variable.
Rref-command for Diagonalisation of Matrices
Call the Rref- command:
[
OPTN
]
[
F2
]
(
MAT
)
[
F6
]
(
>
)
[
F5
]
(
Rref
)
Matrices in Natural Display
Inputing a Matrix:
[
F4
]
[
F1
]
Storing variables in a Matrix: Matrix --> Mat Variable
Calculator commands before the Matrix / Matrix variable
has been entered.

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Casio FX-CG20 Specifications

General IconGeneral
TypeGraphing
Form factorPocket
Product colorBlack
Digits- digits
Display tiltingNo
Display number of lines8 lines
Display number of characters21
Flash memory16 MB
Internal memory0.01562 MB
Battery typeAAA
Power sourceBattery
Battery technologyAlkaline
Number of batteries supported4
USB portYes
Weight and Dimensions IconWeight and Dimensions
Weight230 g
Dimensions (WxDxH)89.5 x 20.6 x 188.5 mm

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