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<#145#>for efficiency, in the case of horizontal and vertical dashlines, the dash is constructed using a rule.<#145#>

... 73^{<#1724#>2<#1724#>}

... macro^{<#1728#>3<#1728#>}

... Unix^{<#1733#>4<#1733#><#1733#>4<#1733#>}

<#497#><#210#>Unix<#210#> is a trademark of ATT.<#497#>