Circuit: * C:\Users\Zotya\Documents\Tanszék\LTSpice\Low-Pass Filter\Active 1st LP Filter.asc Ignoring empty pin current: Ix(u1:1) Ignoring empty pin current: Ix(u1:2) Date: Tue Feb 14 12:27:42 2017 Total elapsed time: 0.063 seconds. tnom = 27 temp = 27 method = trap totiter = 0 traniter = 0 tranpoints = 0 accept = 0 rejected = 0 matrix size = 4 fillins = 1 solver = Normal