portage-ng --merge
>>> Emerging : portage://sci-mathematics/mathomatic-16.0.5-r1:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://sci-mathematics/mathomatic-16.0.5-r1
│ └─ file ─┤ 372.53 Kb mathomatic-16.0.5.tar.gz
└─step 2─┤ install portage://sci-mathematics/mathomatic-16.0.5-r1
│ └─ conf ─┤ USE = "-doc -gnuplot"
└─step 3─┤ run portage://sci-mathematics/mathomatic-16.0.5-r1
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
372.53 Kb to be downloaded.