AGSM Calculator Tutorial
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1. The document discusses calculator skills and recommends the Casio fx-82AU or fx-100AU scientific calculators. 2. It explains the difference between standard and scientific calculators, with scientific calculators following the order of operations (BODMAS) while standard calculators perform calculations in the order entered. 3. Additional tips are provided on using scientific calculator functions like fractions, powers, logarithms, and accessing previous answers.
AGSM Calculator Tutorial
- 1. Calculator skillsCasio fx-82AU and fx-100AUAndrew Hingstonandrew.hingston@agsm.edu.au
- 2. DiscussionWhat answer do you think you would get if you put the following into a calculator?1 + 2 x 3 =Try it now with your calculatorIf “9” then you have a standard calculator If “7” then you have a scientific calculator 2
- 3. Scientific calculatorsStandard calculators make their calculations in the order you enter numbers:1 + 2 = 3 x 3 = 9Scientific calculators obey BODMAS:Brackets then Divide, Multiply, Add, SubtractThey will recognise that 2 x 3 will need to be calculated before adding 1.1 + (2 x 3) = 73
- 4. Which calculator?We recommendBlue, Casio, scientific calculatorModel numbers start with “fx-”Preferably fx-82AU (or fx-100AU)ReasonsCheap (approx $30)Does the job very wellEasier to troubleshoot if everyone uses the same calculatorBetter for this course than a “financial calculator”!4
- 5. DiscussionHow could you make a scientific calculator give you the answer “9” for:1 + 2 x 3 =5?
- 6. BracketsControl what happens first( 1 + 2 ) x 3 =(Answer = 9)These also work:1 + 2 = x 3 =1 + 2 = AC Ans x 3 =6
- 7. Fraction answersCalculate 3 4Answer = ¾Want a decimal?Use SD button!Answer = 0.75Or press shift before =3 4 shift =Or exit Maths IO modeShift Mode 27
- 8. To the power of ...If you want to put something to the power of a number then use xUse to exit powerNow try calculating:32 3 x 2 =(1 + 2)2 ( 1 + 2 ) x 2 = (Answer to both = 9)8
- 9. To the power of a fractionUseful for doing complicated power function.For example2 82/32 8 x 2 3 = Answer = 8 9
- 10. To the power of a negative numberHow do you calculate 2-3 on a calculator?Answer = 0.125To calculate 2-3 …2 x – 3 =This will also work:1 2 x 3 =10
- 11. Other useful tricksShift button gives you access to functions in orangeANS gives you access to the last calculated answer.DEL lets you delete a number in a long formula that is wrong11
- 12. x-1 lets you invert numbersln lets you take natural logsshift ln gives you access to e on blue circular button gives you access to previous answersshift = turns a fraction into a decimal number12
- 13. Calculator on your computerMicrosoft’s free “Power Calculator” is brilliantGoogle “Microsoft Windows powertoys” to downloadAfter installation select View … Numeric CalcBind short-cut key to Ctrl-Alt-CFaster than opening Excel and can type normallyInstalling in Vista or Windows 7 is a bit trickyInstall on Windows XP machine firstCopy PowerCalc.exe from \windows\system32Copy to Vista machineCreate shortcut and modify to run in XP compatibility mode13