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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def geh(m, c):
 """Error function for hourly traffic flow measures after Geoffrey E. Havers"""

    if m + c == 0:
        return 0
    else:
        return math.sqrt(2 * (m - c) * (m - c) / (m + c))