HP Prime Graphing NW280AAABA manual To create a matrix in the Matrix Editor

1. Open the Matrix Catalog: St(Matrix)

2. If you want to create a vector, press =or \until

the matrix you want to use is highlighted, tap , and then press E. Continue from step 4 below.

3. If you want to create a matrix, either tap on the name of the matrix (M0–M9), or press =or \until the matrix you want to use is highlighted and then press E.

Note that an empty matrix will be shown with a size of 1*1 beside its name.

4. For each element in the matrix, type a number or an

expression, and then tap or press E.

You can enter complex numbers in complex form, that is, (a, b), where a is the real part and b is the imaginary part. You can also enter them in the form a+bi.

5. By default, on entering an element the cursor moves to the next column in the same row. You can use the cursor keys to move to a different row or column. You can also change the direction the cursor

automatically moves by tapping . The button toggles between the following options:

– : the cursor moves to the cell to the right of the current cell when you press E.

– : the cursor moves to the cell below the current cell when you press E.

– : the cursor stays in the current cell when you press E.

6. When done, press St(Matrix) to return to the Matrix Catalog, or press Hto return to Home view. The matrix entries are automatically saved.

Matrices

To create a matrix in the Matrix Editor

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