1. A method for obtaining steady state values of a circuit design, comprising: utilizing a computer to perform: automatically identifying a plurality of circuit blocks in the circuit design; selecting at least a subset of the plurality of circuit blocks; generating circuit equations based on the selected subset, wherein the circuit equations comprise at least one non-linear equation; for a first circuit block of the subset, specifying a first set of frequencies; for a second circuit block of the subset, specifying a second set of frequencies, wherein the first set of frequencies differs from the second set of frequencies by at least one frequency; solving the circuit equations for the first and second set of frequencies to obtain at least one steady state value.