compound ket fn: round


round:
    description:
        round[n] ket
        round the value in the ket to n places, leaving the coefficient unchanged
        If you need more decimal places in your kets, use the --places command line option.
        The default is currently set to 5

    examples:
        round[3] |3.14159>
            |3.142>

    see also:
        plus, minus, times-by, divide-by, int-divide-by, mod
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