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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 fmttime(tin):
 """Return LaTeX expression with time in scientific notation. Args: tin (float):
 the time. Returns: str: the LaTeX expression. """

    aaa, bbb = '{:.2e}'.format(tin).split('e')
    bbb = int(bbb)
    return r'$t={} \times 10^{{{}}}$'.format(aaa, bbb)