In these lines, outputs can be specified using the SPICE2 notation. The form is vxx(node1[,node2]), or ixx(branch_device). The xx can be left out, indicating the basic voltage or current, or be one of the following.
These forms are not usually needed for other than ac analysis. The (node1, node2) notation indicates a voltage difference between nodes node1 and node2. If node2 and the associated comma are left out, the ground node is assumed. Output variables for noise, distortion, and some other analyses have a different general form. See the description of the analysis for the output variable names.
m Magnitude p Phase r Real part i Imaginary part db Decibel value ( 20log10 )