AN INTRODUCTION TO: SPREADSHEETS PART 2

BUT FIRST: A REVIEW OF PART 1

THE BASIC SHEET

THE LAYOUT COLUMNS [vertical]: Labelled from A to ZZ ROWS [horizontal]: Labelled 1 – 60,000 [approx]

A CELL MAY CONTAIN: Numeric data – numbers Alphanumeric data – letters & numbers. A special form is Titles A formula – that is, a pre-programmed calculation based on other cells. Note that the result of the calculation is displayed. A function – a different form of formula – again result is displayed. Date

Examples

CREATING A FORMULA Is created in the Cell where the result is wanted Uses Symbols: To start formula: = Arithmetic: +, -, * [multiply], / [divide] Contextual: Brackets – ( ) Can use contents of other Cells or numbers entered in the formula itself

AN EXAMPLE Cell I.D. Formula Displayed Result

MULTIPLE USE A formula can be copied to be used multiple times: Highlight original Cell – copy Highlight all required Cells – paste Pastes copies to all highlighted cells

MULTIPLE USE [2]

MULTIPLE USE [3]

MULTIPLE USE [4] The copying changes the formula in each row relative to the row its in This means the formula need only be created once This happens automatically – if the formula is to be applied multiple times but is to apply to a specific cell, then a special command is needed

FORMULA USING A SPECIFIC CELL Using our previous example but: Price to be in US$ Amount wanted in CAD$ Note in the two following illustrations that the row reference changes as the formula is copied but the exchange rate reference remains constant The difference is that $ sign precedes the Column [E] and the Row [2]. This means always Column E and always Row 2.

FORMULA USING A SPECIFIC CELL

Note also that B3*C3 is shown as (B3*C3) Arithmetic operations in brackets are carried out first when formulas are calculated After that other arithmetic operations are carried out. In this example the brackets are not strictly necessary as the same result is achieved with and without them. BUT this is not always true. It is good practice to use them

BUILDING A SHEET Two Examples Today Both things you might want to do!

EXAMPLE #1 I knew I should have sold the V8! or Whats my fuel consumption

WHAT WE WANT

EXAMPLE #2 Pop Goes The Weasel or Thats the way the money goes!

WHAT WE WANT

YOUR MISSION Find out how much is spent by sub- category