**Tom Kelliher, CS14A**

**Mar. 21, 1997**

Have you e-mailed your PowerPoint project to me?

- What is a spreadsheet?
- Why would I use one?

Parts of the Excel window:

- Rows.
- Columns.
- Cells.
- Formula bar.
- Sheets (Can be renamed).

Cell can contain:

- Number.
- Label (text).
- Formula.

Formulas:

- Begin with
`=`. - Standard arithmetic operations:
`+`,`-`,`*`,`/`. - Can contain cell references:
`=A1+A2+A3+A4`

. - More convenient:
`=SUM(A1:A4)`

. - Ranges.
- Copying formulas.
- Absolute and relative references.

Wed Mar 19 16:06:22 EST 1997