Casio ALGEBRA FX 2.0 Manual Calculations Manual do Utilizador descarregar pdf (Página 61)

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u To input an identity matrix [OPTN]-[MAT]-[Ident]

Use the Identity command to create an identity matrix.

Example 2 To create a 3 × 3 identity matrix as Matrix A

K2(MAT)g(Ident)

da2(MAT)b(Mat)av(A)w

Number of rows/columns

u To check the dimensions of a matrix [OPTN]-[MAT]-[Dim]

Use the Dim command to check the dimensions of an existing matrix.

Example 3 To check the dimensions of Matrix A, which was input in

Example 1

K2(MAT)c(Dim)

2(MAT)b(Mat)av(A)w

The display shows that Matrix A consists of two rows and three columns.

You can also use {Dim} to specify the dimensions of the matrix.

Example 4 To specify dimensions of 2 rows and 3 columns for Matrix B

!*(  )c,d!/(  )a

K2(MAT)c(Dim)

2(MAT)b(Mat)al(B)w

2-8-12

Matrix Calculations

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Casio ALGEBRA FX 2.0 Manual Calculations Manual do Utilizador Página 61