v["V1","2"]=v["GND"];
v["R1","1"]=v["GND"];
v["V1","1"]=v["unnamed_net1"];
v["R1","2"]=v["unnamed_net1"];
nodeEquations={
i["V1","1"]+i["R1","2"]==0};
modelEquations={
voltage_source[value->DC 1V]["V1"],
resistor[value->20]["R1"],
options[value->abotol=1e-11]["A1"]};
variables={
v["unnamed_net1"],
i["V1","2"],
i["R1","1"],
i["V1","1"],
i["R1","2"]};