Hp 49g Graphing Calculator Manual do Utilizador Página 58

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More matrix arithmetic
Simple matrix arithmetic is covered in chapter 8 of the HP 49G User’s
Guide. This section covers some of the other aritlimetic options.
To change the sign of each element in a matrix
1. Press ©(lD.
2. With the cursor between the parentheses, enter or select the matrix.
3. Press
To multiply a matrix and vector
1. Enter or select the matrix.
2. Press ®.
3. Enter or select the vector.
The number of elements in the vector must equal the number of
columns in the matrix.
4. Press
To divide an array by a square matrix
1. Enter or select the array.
2. Press ©.
3. Enter the square matrix.
The number of rows in the matrix must equal the number of rows in
the array.
4. Press (EN
Matrices and linear algebra
Page 5-17
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