# Python ICE 3

Write a Python function to evaluate $s_N=\sum_{n=1}^N (-1)^{n+1}\frac1n$ Obviously it will take one argument, and return one output.

Assignment 6 is posted.

The midterm exam will take place Monday, 16 October. As with all exams, all paper notes may be used, but no electronic devices are permitted. There is a sample exam available.

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