Having to call <#885#>pladv<#885#>, <#886#>plvpor<#886#>, <#887#>plwind<#887#> and <#888#>plbox<#888#> is excessively cumbersome for drawing simple graphs. Subroutine <#889#>plenv<#889#> combines all four of these in one subroutine, using the standard viewport, and a limited subset of the capabilities of <#890#>plbox<#890#>. For example, the graph described above could be initiated by the call:
which is equivalent to the following series of calls:verbatim10#
verbatim11#