Hi Bob, When you specify AC voltages and currents to be printed/probed in HSPICE, they should be specified as: Vx(node1, node2) or Ix(node1, node2) where x can be: DB - decibel I - imaginary part M - magnitude P - phase R - real part T - group delay Specifying a node voltage as: VR(N1,N2) = REAL [V(N1,0)] - REAL [V(N2,0)] is not necessary. I get the impression you saw the section in the manual describing how HSPICE calculates the complex AC quantities and thought that you needed to use the complete equation to get the desired HSPICE results. Tracy Barclay CAE Synopsys Inc. -----Original Message----- From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Bob Patel Sent: Thursday, February 27, 2003 18:20 To: si_list Subject: [SI-LIST] HSPICE syntax HI! I am trying to use the ac analysis output variables and I get an warning when I use it. e.g. .PROBE AC VR(in1, in2)=Real[v(in1,0)]-REAL[v(in2,0)] The warning is : could not identiry variable real[v. I have included acout=1 in my netlsit but I still get error for the built in functions. Am I missing something? THanks Bob __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/ ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu