Delete Programs Ti83

MATH 142Jenn Whitfield'sTI-83 Tutorial for Business CalculusGeneral ApplicationCalculus Specific ApplicationsGETTING TO THE HOME SCREEN. The home screen is the screen where all calculations are performed. To get to thehome screen pressADJUSTING THE CONTRAST. To darken the screen, press andthen hold down the. If you lookin the upper right corner of the screen you should see numbers increasing. If the numberappearing is a 7 or 8 and your screen is still light, your batteries need to be replaced.

To lighten the screen, press and hold downthe. If you look in the upper rightcorner of the screen you should see numbers decreasing.SETTING THE WINDOW. Press to obtain the following menu.Changes can be made by putting the cursor next to the item you want changed, type in thenew values, and then press.The value for x-min must be smaller than the value of x-max. The sameis true for y-min and y-max. To obtain a standard window (the window setting shown above) pressand selecting 6:ZSandard.

The dimensions of thisviewing window are x-min,x-maxXy-min,y-max=-10,10X-10,10.CLEARING PROGRAMS. For the TI-83.

Press. Choose 2:Delete. Choose 7:Prgm. Put the cursor next to the program you want to delete and press. You should see the program deleted from the list of programs. Repeat this step if more programs need to be deleted.

For the TI-83 Plus. Press.

Choose 2:Mem Mgmt/Del. Choose 7:Prgm. Use and put the cursor next to the program you want to delete. To delete the program press.

The question 'Are you sure?' Is displayed on the screen.

To delete the programchoose 2:yes. The calculator will return you to the program screen and the program should be deleted.Repeat this process for each program you wish to delete.CREATING A SCATTERPLOT. Clear all data from lists by pressing and choosing4:ClrList.

This will take you back to the home screen. Now press.Your screen should like the following.If it does then press and the calculator should respondwith Done. Press then select 1:Edit. Input the x values into L 1 and the y values intoL 2.

Press toaccess the scatterplotmenu. Select 1:Plot 1.Make the screen look like the folllowing. Press and adjust your so all data points can beseen on the screen.GRAPHING A FUNCTION.

Press. If a previous function is displayed, put thecursor on the function and press. Enter the function.

To enter a function likef (x) = x 4 - 2x 2 + 1,press the following keys. Pressto display the graph. You mayneed to adjust your to see the graph. A good windowto use for thisexample is -4,4X-10,10.FINDING THE MAXIMUM. Press and input the function. Press and choose4:maximum. At the bottom of the screen the words 'Left Bound?'

Delete Program Ti 83

Appear.Use the orto move the cursor to the left of the maximum (peak) and press,should appear at the top of the screen marking the left bound. At the bottom of the screen the words 'Right Bound?' Appear.Use theto move the cursor to the right of the maximum (peak) and press.

The top of the screen should now have. These two arrows must be facing each other. At the bottom of the screen the word 'Guess?' Use theto move the cursor close to the maximum and press. The maximum point is displayed at the bottom of thescreen.FINDING THE MINIMUM. Press and input the function.

Press and choose3:minimum. At the bottom of the screen the words 'Left Bound?' Appear.Use the orto move the cursor to the left of the minimum (valley) and press,should appear at the top of the screen marking the left bound.

At the bottom of the screen the words 'Right Bound?' Appear.Use theto move the cursor to the right of the minimum (valley) and press.The top of the screen should now have. These two arrows must be facingeach other. At the bottom of the screen the word 'Guess?' Use theto move the cursor close to the minimum and press. The minimum point is displayed at the bottom of thescreen.GRAPHING A PIECEWISE FUNCTION.

Ti-84

Press and move the cursor so it is blinking on 'Dot'.Press to highlight 'Dot'. To graphpress. Next to Y 1= enter the first piece ofthe function by pressing.choose 5.