1. Spreadsheets CIL 102 ‘08 Fall

2. Basic Concepts Cell – Column Letter A..Z,AA..AZ,BA… – Row number Cell Address AlphaNumeric, C55 Labels Values Formulas Navigation – Arrow keys – Use of cntl – Use of End key – Home F keys – F4 and addressing

3. Cell Address: Combination of a – Column letter – Row Number

4. Labels, Values Contents of a cell – Labels – Values – Formulas

5. Typing Formulas Let the system help you insert your formula – First insert sample values before constructing the formula. – Never type in a cell address, point to the cell – Start with the cursor in the cell where the formula belongs. – Press “=“ to start

6. Typing Formulas Know your formula 2*(l + w) After “=“ start typing. To insert a value, point to it and the system fills in the address.

7. Typing Formulas Complete the formula – Each time you must reference a cell, point to it. Note how each reference is highlighted – Complete the formula

8. Typing Formulas Change values – The formula recalculates

9. Built-in Functions Categories – Autosum – Recent – Financial – Logical – Text – Date/Time – Look-up/Reference – Math – Misc Browse Category – Mnemonic Names Name hints at formula – Hover over formula and read description

10. Loan Payment Given – Amount of the loan – A.P.R. – No. of Pay Periods Installment Use built in formulas – Locate category – Browse for formula Financial Category Browse Category Look for a function whose description makes sense

11. Loan Calculator Given – Amount of the loan – A.P.R. – No. of Pay Periods Installment Use built in formulas – Locate category – Browse for formula PMT look good

12. Loan Calculator Place cursor Select function

13. Loan Calculator Place cursor in each text box Read description

14. Loan Calculator Place cursor in each text box Read description

15. Loan Calculator Obvious – Nper: ow long – Pv: Amount of loan Calculation – Rate: Relation between APR and no of periods per year, …/12 Need to think – Fv: =0 – Type: First payment Immediate = 1 One period later = 0

16. Loan Calculator

17. Look at the result! Why the “-” sign? Flow of funds + is one direction (in this case, towards you) - is the opposite direction (away from you)

18. Loan Calculator Change values and this becomes a – Car loan calculator – Home mortgage calculator – Any loan with a fixed rate, fixed time frame, and fixed payment – E.g. car loan of 25K at 6% for 4 years.