Greatest Integer Function - WCS - Home



Graphing Greatest Integer Function f(x) = [x]

To graph the greatest integer functions on the TI 83 calculator you will need to use INT function.

To locate INT on the TI 83 start by pressing MATH then use the right arrow to move the cursor to NUM then use the down arrow to move the cursor to INT.

To graph the greatest integer functions on the TI 83 you need to be in Dot Mode.

Press the MODE button. Use the down arrow to move the cursor to CONNECTED. Now use the right arrow to move the cursor to DOT and press ENTER. You will now be in Dot Mode.

Graphing Piecewise Defined Functions

To graph piecewise functions on the graphing calculator you will need to use the TEST button (2 nd/MATH buttons) to get a list of the inequality symbols that will be needed to graph piecewise functions.

In graphing piecewise defined functions it is best to be in Dot Mode.

Press the MODE button. Use the down arrow to move the cursor to CONNECTED. Now use the right arrow to move the cursor to DOT and press ENTER. You will now be in Dot Mode.

 Example: graph [pic]

Start by pushing Y=. Now enter the following (2x+1) (x at this point press 2nd then TEST then 6, this will give you the less than or equal symbol. Now finish with -3). The equation should look like

Y1=(2x+1)(x ≤-3)

 To do the middle part, 3x+2, -3 ................
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