All Forums  FastFieldSolvers  FasterCap and FastCap2  parallel plates with different size

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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Antispam question: What do MOONwalk and MOONdance have in common? Answer: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON [quote][i]Originally posted by lpang2[/i] [br]Hi, i want to model the capacitance of two parallel plates embedded in medium with permittivity of 7. One plate is larger and the other one is smaller. The distance between them is 260nm. 0 parallel capacitor Q 1 0.0 0.0 0.0 0.0002 0.0 0.0 0.0002 0.0002 0.0 0.0 0.0002 0.0 Q 2 0.00005 0.00005 0.00000026 0.00015 0.00005 0.00000026 0.00015 0.00015 0.00000026 0.00005 0.00015 0.00000026 When I run FastCap, it shows that: mksCapDump: Warning - capacitance matrix is not strictly diagonally dominant due to row 2 CAPACITANCE MATRIX, picofarads 1 2 1%GROUP1 1 6.379 -4.766 2%GROUP1 2 -4.766 3.19 Could you help me why the matrix is not symmetric? Thanks a lot! [/quote]   Check here to include your profile signature.