On the TI-84 Plus calculator, it'due south difficult to get a nice viewing window for your sequence on your get-go attempt. Understanding the nuts of sequence notation should help. Here are the variables used in the window of a sequence graph:

  • northMin: Where n starts counting. i is the default value.

  • nMax: Where n stops counting. Choose a value for nMax that is as large equally y'all might need.

  • PlotStart: First term number to exist plotted; 1 is the default value.

  • PlotStep: Increment for the northward value, used only in graphing. 1 is the default value.

Recollect, use the arrow keys to navigate the Window menu. Hither are the steps to set your graphing window:

  1. Printing [WINDOW] to access the Window editor.

    See the offset screen.

    In most cases, information technology is best to gear up due northMin, PlotStart, and PlotStep to i.

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  2. Enter nMax.

    Cull a value of nMax that is equally large equally you lot might need; try 100. Meet the second screen.

  3. Enter the Xmin.

    Enter Xmin = 0 for an aesthetically pleasing graph.

  4. Enter the Xmax.

    How many terms do you want to graph? Bold the PlotStep and nMin are 1, enter the number of terms you lot want to graph.

  5. Enter the Ymin.

    Enter a value a petty smaller than the smallest y-value in the sequence. Sometimes yous have to guess this value; in this sequence, the smallest y-value is ii, 0 was entered in the instance.

  6. Enter the Ymax.

    Enter a value a little larger than the largest y-value in the sequence. Sometimes y'all accept to guess this value; in this sequence, the largest y-value was guessed to be around 25, every bit shown in the 2nd screen.

    If the values of Xmax or Ymax are large, you might desire to adjust the Xscl or Yscl values accordingly.

Okay. Yous are set up to graph your sequence. If your sequence doesn't display as nicely as y'all had hoped, printing [WINDOW] and adjust the variables appropriately.

Press [GRAPH]. See the graph. It looks like the Xmax needs to be larger and then that all the terms in the sequence will graph.

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About This Article

Virtually the volume authors:

Jeff McCalla is a mathematics instructor at St. Mary's Episcopal School in Memphis, TN. He cofounded the TI-Nspire SuperUser group, and received the Presidential Laurels for Excellence in Scientific discipline & Mathematics Pedagogy. C.C. Edwards is an educator who has presented numerous workshops on using TI calculators.

This article can be institute in the category:

  • Graphing Calculators ,