Problem:
Plot the first 100 partials sums of the series

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Visualization:
Using Sequences and Series (from the University of Arizona):

1. After starting up the program, you are prompted "Would you like some instructions?" Use the arrow keys to move to either Yes or No and then press .
2. If you choose Yes then read the instructions and press when you are ready to proceed.
3. Use the arrow keys to highlight Sequence Operations and press .
4. Use the arrow keys to highlight Create Sequence and press .
5. At the prompt, a(n) =, type (-1)^n/n .
6. At the prompt, Starting value for sequence, n = 1, press .
7. Use the arrow keys to move to Sequences/Series and press .
8. Now use the arrow keys to move to Graph Partial Sum and press .
9. At the prompt, Minimum y : 0, enter -1 .
10. At the prompt, Maximum y : 1, press .