A rejected detuning candidate still cites a checked LC source. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.
highlighted = computed this step
The far candidate is still a checked LC source
The rejected candidate uses inductance 1/5 henry and capacitance 1 farad, giving square 5.
L=51H,C=1F,ω2=5s−2
Outside the tolerance gives accepted bit zero
The distance is 4, greater than tolerance 1, so the accepted bit is 0.