# Online Calculator Manual

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OnlineCalculatorManualPSSA and Keystone ExamsNote: This manual is not to be used during testing.

ONLINE CALCULATOR MANUALONLINE CALCULATORSStudents can access a calculator by clicking the calculator icon,, located in the toolbar at the top ofthe screen. The Basic Calculator performs the four basic operations of arithmetic. The ScientificCalculator can perform exponential, logarithmic, and trigonometric operations, as well as the four basicarithmetic operations. Each calculator can be clicked and dragged around the screen. Each calculatorcan also be removed from the screen by clicking the red X located in the upper right corner of thecalculator. This will close the pop-up window for the calculator.BASIC CALCULATORBy selecting Basic from the drop down menu of the calculator icon, students can access the BasicCalculator as shown below.The Basic Calculator can be used to perform the operations of addition, subtraction, multiplication, anddivision. It also has the ability to recognize both positive and negative numbers. However, it does notrecognize or apply the order of operations. For example, entering 2 3 5 would result with thecalculator reading “25”. The calculator does each operation in the order it is entered, as opposed tofollowing the order of operations with multiplication done before addition.The table below gives the functions and keyboard shortcuts for the buttons on the Basic Calculator.Button0, 1, 2, 3, 4, 5, 6, 7, 8, 9 . / CLEARKeyboard Shortcut0, 1, 2, 3, 4, 5, 6, 7, 8, 9 */.EnterDelete or BackspaceAlt and DeletePage 1FunctionEnters digits 0 through 9AddsSubtractsMultipliesDividesInserts decimal pointSwitches between positive and negative numbersPerforms previously entered operation(s)Deletes last digit, button, or keystroke enteredResets calculator and clears memorySpring 2013

ONLINE CALCULATOR MANUALSCIENTIFIC CALCULATORBy selecting Scientific from the drop down menu of the calculator icon, students can access theScientific Calculator. The Scientific Calculator can be used to determine values of exponential,logarithmic, and trigonometric functions. It can also perform the operations of addition, subtraction,multiplication, and division. The Scientific Calculator also recognizes both positive and negativenumbers. The picture below shows the buttons available on the first screen of the Scientific Calculator.Unlike the Basic Calculator, the Scientific Calculator recognizes and applies the order of operations. Forexample, entering 2 3 5 would result with the Scientific Calculator reading “17.” It also recognizesmultiplication as a default for parenthesis.The screen on the Scientific Calculator allows for a 12-digit display. If the absolute value of a result isbetween or equal to 10-11 and 1011, it will not be displayed in scientific notation. Likewise, if the absolutevalue of a result is less than 10-11 or greater than 1011, it will be displayed in scientific notation.The square root, x root, factorial, trigonometric, and logarithmic functions will automatically show onthe screen with an open parenthesis. The operation will be performed on the Scientific Calculatorregardless if a closed parenthesis is included or not with the expression. For instance, entering LOG (100would result with the Scientific Calculator reading “2.” The same result would appear on the screen ifLOG (100) was also entered.Page 2Spring 2013

ONLINE CALCULATOR MANUALSCIENTIFIC CALCULATOR (CONTINUED)The inverses of the trigonometric functions, the inverses of the exponential functions, the square rootfunction, the x root function, and the factorial function are displayed on the second screen. By clickingthe 2nd button on the Scientific Calculator, the new set of buttons will appear as shown below.Students can return to the first or default screen by selecting the 1st button. However, the ScientificCalculator automatically returns to the first screen once a button is selected from the second screen.The table below gives the functions and keyboard shortcuts for the buttons on the Scientific Calculator.Button0, 1, 2, 3, 4,5, 6, 7, 8, 9 – .(-)ENTER KeyboardShortcut0, 1, 2, 3, 4,5, 6, 7, 8, 9 */.EnterDelete orBackspaceAvailabilityon 1st ScreenAvailabilityon 2nd ScreenEnters digits 0 through 9 AddsSubtractsMultipliesDividesInserts decimal pointInserts negative signPerforms previously entered operation(s)Deletes last digit, button, or keystrokeentered FunctionPage 3Spring 2013

ONLINE CALCULATOR MANUALSCIENTIFIC CALCULATOR (CONTINUED)ButtonCLEARKeyboardShortcutAlt andDeleteANS1st2nd()π x2Shift and 9Shift and 0 or Shiftand [email protected] or Shiftand 21/xLOGLNDegrees RadiansSINCOSTANEE x x!ex10xSIN-1COS-1TAN-1! or Shiftand 1FunctionResets calculator and clears memoryEnters final result of previous calculation;done automatically if an operator isentered before a numberMoves to first screen of buttonsMoves to second screen of buttonsEnters left or open parenthesisEnters right or closed parenthesisEnters value for piRaises a value to a power; to enter 34, type3 4 and click Enter to get “81”Squares the value entered; to enter 52, type5 x2 and click Enter to get “25”Calculates the multiplicative inverse orconverts fraction 1/x to a decimal; to enter1/8, type 8 1/x and click Enter to get“0.125”Enters the common logarithm notationEnters the natural logarithm notationSwitches mode from degrees to radians orvice versa; default setting is degrees;current mode setting of calculator is listedbelow lower-right corner of calculatorscreenEnters the sine notationEnters the cosine notationEnters the tangent notationEnters a value in scientific notationEnters the square root notationEnters the x root notation; to enter, 3 125,type 3, click 2nd, click x , type 125 and clickEnter to get “5”Sets up a factorial expressionAvailabilityon 1st ScreenAvailabilityon 2nd Screen Enters a base e exponential expressionEnters a base 10 exponential expressionEnters the inverse of sine notationEnters the inverse of cosine notationEnters the inverse of tangent notationPage 4Spring 2013

ONLINE CALCULATOR MANUALGRAPHING TOOLStudents can access the Graphing Tool by clicking the graph icon,, located in the toolbar at the topof the screen. The Graphing Tool is designed to graph equations where y is equal to a function of x. TheGraphing Tool can be clicked and dragged around the screen. The Graphing Tool can also be removedfrom the screen by clicking the red X located in the upper right corner of the Graphing Tool. This willclose the pop-up window for the Graphing Tool.BUTTON FUNCTIONSMathematical functions can be entered in the box after “Y ”. If a function with more than 35 charactersis entered, the slider,, on the right will become active. Grab the square on the slider anddrag it to move the entered text left or right on the screen. Each of these functions will be graphed onthe second screen when clicking the GRAPH button. The buttons available on the first screen of theGraphing Tool are shown below.Page 5Spring 2013

ONLINE CALCULATOR MANUALBUTTON FUNCTIONS (CONTINUED)The table below gives the functions and keyboard shortcuts for the buttons on the Graphing Tool.Button0, 1, 2, 3, 4, 5, 6, 7, 8, 9 .(-)XGRAPHKeyboard Shortcut0, 1, 2, 3, 4, 5, 6, 7, 8, 9 */.x Delete or BackspaceAlt and DeleteCLEARPREVNEXTπ() Shift and 9Shift and 0 or Shift and [email protected] or Shift and 21/x10xexLOGLNSINCOSTANSIN-1COS-1TAN-1Degrees RadiansFunctionEnters digits 0 through 9AddsSubtractsMultipliesDividesInserts decimal pointInserts negative signEnters the independent variable, xChanges to second window with graph of mathematicalfunction(s)Deletes last digit, button, or keystroke enteredResets calculator and clears memoryMoves to previously entered math functions to be editedAllows new mathematical function to be entered or movesto mathematical function below to be edited; up to 6mathematical functions can be entered at a timeEnters value for piEnters left or open parenthesisEnters right or closed parenthesisEnters the square root notationRaises a value to a power; to enter 34, type 3 4 and clickEnter to get “81”Squares the value entered; to enter 52, type 5 x2 and clickEnter to get “25”Calculates the multiplicative inverse or converts fraction1/x to a decimal; to enter 1/8, type 8 1/x and click Enter toget “0.125”Enters a base 10 exponential expressionEnters a base e exponential expressionEnters the common logarithm notationEnters the natural logarithm notationEnters the sine notationEnters the cosine notationEnters the tangent notationEnters the inverse of sine notationEnters the inverse of cosine notationEnters the inverse of tangent notationSwitches mode from degrees to radians or vice versa;default setting is degrees; current mode setting ofcalculator is listed below lower-right corner of equationscreen and graph screenPage 6Spring 2013

ONLINE CALCULATOR MANUALGRAPHSThe graph screen of the Graphing Tool can be accessed by clicking the GRAPH button from the firstscreen. The second screen of the Graphing Tool has the default settings shown below.The table below gives the functions for the buttons on the second screen of the Graphing Tool.ButtonCLEARFUNCFunctionReturns to the first screen with typed mathematical function(s)and resets toolReturns to the first screen with typed mathematical function(s)The size of the graph window can be adjusted by entering new values in the white boxes in theBoundaries column. Students can type or use the arrow buttons to change the values for the minimum xvalue, maximum x value, minimum y value, and maximum y value of the graph window.A vertical dashed line will represent the location of the x value when dragging the arrow across thegraph window. The x-coordinate for the vertical dashed line will appear to the right of “x ” in the Tracecolumn. The corresponding y-coordinate of where the dashed line and the graphed line intersect willappear to the right of the “ ” sign in the mathematical function typed below “x ”.Page 7Spring 2013

ONLINE CALCULATOR MANUALGRAPHING MULTIPLE FUNCTIONSMultiple mathematical functions can be entered on the first screen of the Graphing Tool by clicking onthe NEXT button. Up to six mathematical functions can be graphed at once. Each new function will havea colored border as shown below.Page 8Spring 2013

ONLINE CALCULATOR MANUALGRAPHING MULTIPLE FUNCTIONS (CONTINUED)The same color used for the border of the mathematical function entered on the first screen will be usedfor graphing the function on the second screen. Therefore, the multiple mathematical functions enteredon the first screen will all appear each in a different color on the second screen in the graph window.Also, the different values of the x variable and corresponding y values, noted in the Trace column, will becolor coordinated with the mathematical functions entered on the first screen and graphed on thesecond screen. The picture below shows the second screen when multiple mathematical functions aregraphed.Page 9Spring 2013

CLEAR Alt and Delete Resets calculator and clears memory . ONLINE CALCULATOR MANUAL Page 2 Spring 2013 SCIENTIFIC CALCULATOR . The square root, x root, factorial, trigonometric, and logarithmic functions will automatically show on the screen with an open parenthesis. The operation will be performed on the Scientific Calculator