Qucs no actions defined. 0 fF no Isr recombination current parameter 0.

Qucs no actions defined 1), and this warning makes me crazy: and these warnings make the compiler unsuccesfull: make -f /usr/local/includ. The code I am using implements the transition() function, which ADMS returns as an undefined function, also the always functions is not found. I'm comfident that I'm doing something wrong, but WTH? I tried to start a simulation, but I always get the error "checker error, no actions defined: nothing to do". It makes this issue not so major. Open the *. 173 Oct 28, 2023 · The microstrip devices models #94 will be most likely implemented in form of Verilog-A modules. sch. Plan and track work Code Review. The purpose of the Qucs-S project is to use free circuit simulation kernels (Ngspice, Qucsator, Xyce) with the unified GUI based on Qt6 toolkit. Operators Arithmetic Operators From Qucs-0. The purpose of the Qucs-S subproject is to use free SPICE circuit simulation kernels with the Qucs GUI. php line 561: Action ArticlesController@ M. 22 - qucsator crashes using Component library devicesĬopyright (C) 2003-2009 Stefan Jahn Ĭopyright (C) 2006 Helene Parruitte Ĭopyright (C) 2006 Bastien Roucaries 0 Comments Leave a Reply. 19 but porting them over to Qucs-S is problematic. Jan 7, 2020 · Hello, Using Equation-Defined Devices (EDDs) featuring I1=(V1)^x when x is not an integer >=0. Automate any workflow Codespaces. cir" hoping to get Qucs/ngspice to work. May 16, 2017 · Hello everyone I was working with a model in verilog A on Qucs 0. 08. It help user getting that there are such components and Qucs expecting one of them on the schema. 5 Qucs Frequency Equation-Defined Device (FEDD) models; 4. Figure 1: resistor cube schematic All I did was select resistance in the left hand component window and paste them down, rotating as necessary, until I had twelve on the schematic. html. So depending on your system’s language settings the Qucs graphical user interface (GUI) appears in di erent languages. I know this is QUCS-S and not QUCS, but the QUCS-S Get started only includes AC simulation. Best to delete the library and re-start. Once more, this concept can easily expanded to any number of ports. Collaborate outside of Qucs Help Documentation, Version 0. 3, Mar. This manual describes the measurement expressions available in "Qucs", the "Quite Universal Circuit Simulator". Bugs. pro and qmake. example in your code: Change Mar 4, 2020 · By clicking on Add this does not add a line to the equation while in some examples several lines are displayed Did i do something wrong or is it a bug ? Jan 12, 2023 · Section 16. 2009, pages 307-321. Default behavior is to derive the initial conditions from OP simulation. Two issues came up: BSIM4_prj - BSIM4 files work using ngspice but under Qucs-S produce "Alberto says: YOU TURKEY! The limiting function received NaN. Qucs intentionally uses its own SPICE incompatible simulation kernel Apr 13, 2006 · The main problem here is that the SCP aborts the association (closes the network connection) immediately after the failed transmission. The Qucsconv utility is a part of QucsatorRF. Apr 8, 2011 · The material presented also demonstrates how recent trends in "Quite universal circuit simulator" (QUCS) technology promote embedded Verilog-A models and equation-defined subcircuits as integral - Qucs - Quite Universal Circuit Simulator Short Description of Mathematical Functions The following operations and functions can be applied in Qucs equations. Quite Universal Circuit Simulator has 12 repositories available. 3. h> 00027 00028 #include <QProcess> 00029 #include <Q3PtrList> 00030 #include <QRegExpValidator> 00031 #include <QLineEdit> 00032 #include <QAction> 00033 #include <QStatusBar> 00034 #include <QMessageBox> 00035 #include <QFileDialog> 00036 # May 30, 2018 · @DessaugesAntoine If i put route instead of action its same thing Route not defined. "So," says I to myself, "I guess I should RTFM and set this up right. Chapter 1 Scattering parameters 1. txt is: # Qucs 0. spiceinit (namely "set ngbeha Sep 27, 2015 · It's not quite in a such way. 0 MODEL _MD2_Inv2_N VSWITCH Roff=1e6 Ron=1 Voff=0. # qucs command or by clicking the appropriate icon on your start menu or desktop. Qucs-S is a nice, maintained fork of Qucs that works with real SPICE engines. Pour démarrer le calcul, cliquez le bouton « Simuler » (ou le menu : Simulation ->; Simuler). 0 no Ffe icker noise frequency exponent 1. 0 fF no Isr recombination current parameter 0. I just installed QUCS to help with a project. 9V Von=0. Simulation seems to work but no results. Jahn, "Modelling of high-frequency inductance with Qucs non-linear radio frequency equation defined devices", International Journal of Electronics (IJE), vol. Nov 2006 at 00:56:59 Aborted. In the left area you see the node name you have defined: "divide". I've run into issues when using PSPICE models. You must declare a result name with the returned string value. But all of them gave me the same error. net/examples. ----- I haven't found any more logging messages anywhere. 18 to Qucs-0. You can also Nov 2006 at 00:56:59 Aborted. The GUI is based on Qt® by Digia ®. The InitialDC=no applies the UIC option for Ngspice that tells simulator use the IC defined by user. 0. It coul d be seen from the error text that library file name is not determined properly. Non-linear controlled sources are one of the features on the Qucs to-do list. close? In the following libraries all components was checked for erroneous definitions. Controller file is where every controller file is, in app/http/Controllers/ Dec 2, 2015 · No result defined for action action. Jul 7, 2015 · I am trying to add verilog-A logic gate files into a simulator. copy pythonqucstest_prj in your . Schematic Entry Quick Reference equation defined 2-port RF device: dc Oct 14, 2023 · No new symbol appears in "verilog-a devices" group. You can’t I think qucs is wonderful, and I hope I can contribute to making it more of a success. Update No new GUI for qucs Aug 6, 2022 · ngspice BSIM examples that work using DuSpice /ngspice are not working using Qucs-S. 1 Resistor R:Name Node1 Node2 [Parameters] Parameter Name Default Value Mandatory R ohmic resistance in Ohms n/a yes Temp simulation temperature in degree Celsius 26:85 no Tc1 rst order temperature coe cient 0:0 no Tc2 second order temperature coe cient 0:0 no Tnom temperature at which parameters were extracted Tool to capture, analyse and create infrared remotes signals Plugin your own custom maps, costumes, and other artworkįailed to load icon: icon /usr/share/icons #Qucs checker error no actions defined mods; On the right are capacitors for AC coupling the speaker. cpp. " and generate no data. 0 ps no Ikf high-injection knee current (0=in nity) 0 no Kf icker noise coe cient 0. Chapter 6. Contribute to ra3xdh/qucs_s-help development by creating an account on GitHub. More I'm about a newbie in electronics but real circuit measures a voltage Apr 23, 2015 · After updating from Laravel 4. 4Models employing non-linear controlled sources, for example the SPICE B voltage and cur-rent sources, are not allowed in Qucs release 0. e. 5, October 1994, pp. I've used dozens of circuit analysis programs dating back to punch cards and time share. 1V MODEL _MD2_Inv1_N VSWITCH Roff=1e6 Ron=1 Voff=0. 1 Apr 21, 2020 · Yeah, as title says: couldn't find Zener Diode anywhere. 1, ^(4/3) It does not work for ^- This manual describes the measurement expressions available in "Qucs", the "Quite Universal Circuit Simulator". Quite Universal Circuit Simulator Short Description of Actions General Actions (valid in all modes) mouse wheel: Scrolls vertically the drawing area. checker error, no actions defined: nothing to do Qucs does not know what to do as we did not define any simulations to perform 2. Unfortunately I get a conflicting "Qucs-S Message", Simulator crashed! and Simulator the rectangular voltage source has a problem (as I was mentioning on Qucs-help): its DC value is strangely defined as its mean value (i. qucs folder; open QUCS GUI and run the pythonqucstest schematic in order to create the netlist; check that QUCS created the netlist text file, usually in . Thread: [Qucs-help] Fails to Simulate A circuit simulator with graphical user interface (GUI) Oct 8, 2016 · Usually one can specify the value of a component parameter thru a variable, e. Generated on Sat Jan 23 2016 18:44:06 for Qucs-core by 1. 10 Digital component propagation time delays and transient simulation numerical stability. If you want to do AC/DC and "simple "RF analysis and DON'T need to use manufacturers Spice models, Qucs and QucsStudio are OK. Sharing your feedback about this process or ask for help Here is the QUCS CHECKER ERROR NO ACTIONS DEFINED SOFTWARE. Then I wired two IEE Proc. All appears to run fine. Operators Arithmetic Operators I have been trying to get a complex library of IGBT Spice models to work in Qucs. Quite Universal Circuit Simulator Discussion A circuit simulator with graphical user interface (GUI) Forums Newbie Problem Using QUCS I just installed QUCS to help with a project. Qucs checker error no actions defined verification# Qucs checker error no actions defined code# We evaluate the accuracy of our expressions, as well as Inductance of 6. 4 Qucs Equation-Defined Device (EDD) models; 4. 19: the way forward Octave support for Qucs circuit simulation Expanded compact device modelling capabilities with the Berkeley Model and Algorithm Prototyping Platform (MAPP) Compact device modelling with Qucs EDD models, SPICE B models, MAPP DAE models, and Qucs ADMS/Verilog-A “turn-key” tools The implementation of the Windows CI using Github actions involves two tasks Add basic CI setup to test windows compatibility. 1 Resistor R:Name Node1 Node2 [Parameters] Parameter Name Default Value Mandatory R ohmic resistance in Ohms n/a yes Temp simulation temperature in degree Celsius 26:85 no Tc1 rst order temperature coe cient 0:0 no Tc2 second order temperature coe cient 0:0 no Tnom temperature at which parameters were the netlist. (I do with the scientific notation truncation point was adjustable) Figure 1: An early revision of the dev kit’s schematics from May 2nd (Git commit hash 023915d5)Īfter the schematic drawing was completed, we then exported our netlist file, getting us that much Qucs Devices 4. This requires a clear understanding on the part of both qucs_s and the customer of what such an XML-based component must look like. 1 Resistor R:Name Node1 Node2 [Parameters] Parameter Name Default Value Mandatory R ohmic resistance in Ohms n/a yes Temp simulation temperature in degree Celsius 26:85 no Tc1 rst order temperature coe cient 0:0 no Tc2 second order temperature coe cient 0:0 no Tnom temperature at which parameters were 0. Qucs releases up to 0. 23 on opensuse leap 15. ^2. More advanced circuit simulation techniques. Nevermind, Ive found It’s also fair to say that radio enthusiasts seeking a high-performance SDR would also have to be prepared with a hefty bank balance, as some of the components required to deliver software defined radios have been rather expensive. Short and open circuits (used Feb 16, 2024 · Qucs-S will only allow lib names not already present in the main library folder and user_lib. qucs/netlist. 9V MODEL _MD2_Inv1_P Advanced-level students concentrating on Engineering, Mathematics and Computer Science will find this reference a valuable asset as well. 2022. lib" doesn't work so was simplified to "IGP20N60H3. Secrets resorts montego bay. 7 Nov 23, 2024 · The long-awaited, new version is available in the download section. M. 6. for an inductor L=myLvalue, where myLvalue is defined in an Equation component. 15 /home/pquet/. 1 #QUCS CHECKER ERROR NO ACTIONS DEFINED SOFTWARE# #QUCS CHECKER ERROR NO ACTIONS DEFINED CODE# Please enter security code that you see on the above box. Instant dev environments Issues. 0" Tc2="0. I tried running qucs --help to find some debug verbosity params, but qucs seems to ignore command-line args and start the gui. Mar 2, 2022 · If there are any qucs (electrical circuit analyzer) experts viewing, here is my problem. The internal labels are a combination of both. Attempting to type them also produces no results. I am not seeing so many crashes. 0 no I use Qucs, Qucs-S, QucsStudio and LTSpice. 1 gives There is no Action mapped for namespace / and action name May 29, 2018 · I've got a reducer set up, however the console complains that 'action' is not defined no-undef import { getName } from '. 85" Tc1="0. The "S" letter indicates SPICE. ngspice, in fact, supports PSPICE models, but it requires a setting in . They allow for very simple mixed-signal (analog and digital) simulation. 4 (only a subset of Verilog-A is supported). sch files are XML. char * Mar 19, 2024 · The new version of Qucs-S will include QucsatorRF #370. 5 no Cp linear capacitance 0. Also the SNAP package for Ubuntu probably was not updated. May 31, 2015 · In short terms, this "show stopper" can be solved just by adding a text message into the Messages window like "Please add simulation components". . I think, it appears after #556. The software aims to support all kinds of circuit simulation types, e. DC, AC, S-parameter, Harmonic Balance analysis, noise analysis, etc. The *. 0 Ohm no Tt transit time 0. 417-420. to form a "Quite Universal Circuit Simulator". E. Edit: also works for ^x too, e. 1 1. This tool operates only in CLI mode now. Источник. Follow their code on GitHub. Qucs is a multi-lingual program. ArticleAction and result input. will be 2. Using this components will results in an error not before the simulate was pressed. qucs/TestProject_prj/TestSch. 0, I am getting the following message in almost every page of my application: InvalidArgumentException in UrlGenerator. Examples would be the conversion of a simulated voltage waveform from volts to dBV, the root mean square value of that waveform Chapter 1 Scattering parameters 1. What did I wrong? Hello! Press on the "Tabular" item, move to the working area and place it by clicking the left mouse button. This route remains popular amongst most Qucs users because it is easy to understand, is fully interactive and allows straight forward testing of new mod-els. Quite Universal Circuit Simulator (some very old FreeBSD compatibility patches) - AMDmi3/qucs Oct 20, 2014 · The more general way is that: Add CONFIG += console in . py in the demo folder Mar 30, 2023 · If you look at the ever-so-professional MS Excel, even the natural constant Pi is defined as an "argumentless function" PI() Pi is most certainly not a function in any way - even if Microsoft say so. It merges the power of SPICE and the simplicity of the Qucs GUI. The original lib file "IGBT_600V_HighSpeed3_L1. Post simulation dialogue says: Feb 12, 2015 · Quite Universal Circuit Simulator. I think this is #993 now. The behavior of storescu is not correct here - the tool should not continue to try sending images once the network connection is down, because this is of course guaranteed not to work, but the reason why further images do not get transmitted is actually the Reimplemented from qucs::circuit. File->Edit Circuit Symbol, then double click on component name. 6 ngspice and Xyce translation/synthesis of EDD and FEDD models; Chapter 5. , 51 Franklin Street - Fifth Floor, 00019 * Boston, MA 02110-1301, USA. Measurement expressions come into play whenever the results of a "Qucs"simula-tion run need post processing. Parameters in brackets "[]" are optional. Nov 2, 2022 · Hi, I'm trying to follow the QUCS Get Started for DC simulation (page 6, DC simulation - A voltage divider). spiceinit", while section 17. 9V MODEL _MD2_Inv2_P VSWITCH Roff=1e6 Ron=1 Voff=4. Use user version of library. Gravity hill Sep 17, 2014 · This can be included with Qucs. – Kamlesh Paul Commented Oct 12, 2020 at 9:51 Interactive Compact Device Modeling Using Qucs Equation Defined Devices Stefan Jahn1, Mike Brinson2 and Michael Margraf3 Introduction The latest Qucs[1] release marks a turning point in the development of the Qucs device and circuit Thread: [Qucs-help] Fails to Simulate A circuit simulator with graphical user interface (GUI) Qucstudio could be so much better if the author made it open source. 1. Initially, this is in a simple block form which can be edited using the Qucs ”Painting“ tools to give any desired schematic symbol outline. 19 (on ubuntu 16. In the folder where i am running spice, i created a file . sch file with the text editor and remove the "SweepModel" property. FWIW, I compiled qucs since I'm running gentoo (with flags -O2 -march=athlon64), instead of downloading a binary. 2 to 5. This paper is concerned with the development and evaluation of a number of modelling techniques which improve Qucs Harmonic Balance Documetation for Qucs-S . 7 describes how to set these variables in interactive mode. Qucs Devices Passive Devices 0. automatically generate a Qucs schematic symbol for the new model. One feature that is common to all components included in Qucs releases up The spice4qucs special component called Equation defined source could be used as alternative to the Qucs EDD. I haven’t tried it, but Xyce’s HB solver is supposed to be phenomenal. Brinson and S. Manage code changes Discussions. Probably QUcsator can inspect the netlist and apply the option automatically if the IC is specified somewhere. For clarity best to keep library and device names short. May 3, 2019 · This can happen if you are trying to open the schematic saved by Qucs-S using Qucs. Jun 21, 2019 · Hi! I've been using your software, it's been really useful when simulating SPICE models. These modules should be compiled with OpenVAF and attached to Ngspice. 4 presents both the original ( % Fig. 19 seems much more tolerant of Component library devices. This task is implemented via #718 Add Windows snapshots generation procedure using Github actions. Temp solution, you can run qucs like this to get qDebug message: # qucs command or by clicking the appropriate icon on your start menu or desktop. Qucs Devices 4. Although not yet nished, a sub-stantial part of the central core of the package is functioning, allowing it to be used as a simulation engine for the analysis and design of real circuits. If not, write to 00018 * the Free Software Foundation, Inc. 0 no Af icker noise exponent 1. Jul 29, 2024 · This means that besides the pre-defined qucs_s XML components a user can define own XML based components and import it to qucs_s from scratch. -Circuits Devices Syst. 12 17:47. 7. #Qucs checker error no actions defined how to# #Qucs checker error no actions defined install# #Qucs checker error no actions defined code# #Qucs checker error no Sep 27, 2023 · InitailDC=no should not be set as default. A dialog opens where you can choose what should be displayed by the new diagram. Thanks. This is where the major advantages of using xsd come into play: Saved searches Use saved searches to filter your results more quickly Actions. /actions'; let defaultState={ name: "Sam Oct 12, 2020 · InQuestsController!= InQuestController fix this here Action App\Http\Controllers\InQuestController@destroy not defined. Dec 31, 2017 · When I start the simulation I get an error: checker error, no actions defined: nothing to do. 0 no 0. Fig. The help utility is useless. 96, no. I have no access to MacOS and cannot debug the build issues on this platform. It works for ^0, ^1, ^2, ^n. For detailed description please refer to the "Measurement Expressions Reference Manual". checker error, no actions defined: nothing to do A circuit simulator with graphical user interface (GUI) Qucs Devices 4. It would be good to add a simple GUI to Qucsconv in the Tools menu. 2. It implements a behavioural B-type SPICE voltage or current source. The components are single macromodels for time domain simulation. Mar 23, 2020 · There ara some typos and 'out of range' errors. 6 describes how to do this in the "User defined configuration file . This component is located in group Spice components . 1 Introduction and definition Voltage and current are hard to measure at high frequencies. 1 Here is my attempt to make a cube in Qucs; anyone is welcome to try and improve it. spiceinit having the following content: set ngbehavior = ps Now ngspice prints: Note: Compatibility modes selected: ps I think qucs is wonderful, and I hope I can contribute to making it more of a success. 18 fil se finir en l’air en double-cliquant. * 00017 * * 00018 *****/ 00019 00024 #include <QtCore> 00025 #include <stdlib. - Qucs - Quite Universal Circuit Simulator Short Description of Mathematical Functions The following operations and functions can be applied in Qucs equations. 0 no Rs ohmic series resistance 0. Saved searches Use saved searches to filter your results more quickly Jul 23, 2024 · Qucs-S is a circuit simulation program forked from Qucs circuit simulator. So, QUCS would be doing better than Microsoft if it defined a dB function, I guess. 9. Use the classic repositories or DEB packages. And as always: Thanks a lot to all supporters! This release would not have […] Feb 15, 2018 · The built in digital simulation models in qucs-core are not event based. The time-domain simulation of components defined in the frequency-domain can be performed using an inverse Fourier transformation of the Y-parameters of the component (giving the impulse response) and an adjacent convolution with the prior node voltages (or branch currents) of the component. Short and open circuits (used [Qucs-help] Fails to Simulate A circuit simulator with graphical user interface (GUI) The modelling of semiconductor devices centered on non-linear Equation-Defined Devices and blocks of Verilog-A code, combined with linear components, is introduced and form a class of compact macromodel that has improved Harmonic Balance simulation performance. The calculation of the S-parameters is not that trival. Note that the application name changed to uSimmics in order to clearly distinguish it from the Qucs projects. Here one can add/remove new properties for user defined components. Moving Qucs-s-0. A Qucs non-linear resistance EDD model plus its schematic symbol !"! Jan 23, 2016 · * 00017 * * 00018 *****/ 00019 00024 #include <QtCore> 00025 #include <stdlib. 5 V for a square wave source with 5 V amplitude). Steps to reproduce: Select this library at ComboBox. 0 no Nr emission coe cient for Isr 2. This is a major release with many, many improvements, new features and bugfixes. Vdc:V1 _net0 gnd U="1" R:R1 _net0 Divider R="50 Ohm" Temp="26. Currently there is no way to fix it automatically. I have compiled qucs-s 0. Would be useful to cover all essential electrical components. (I’ll be adding a four wire resistance measurement, but […] Nov 6, 2016 · Every user library with Default symbol defined gives an error message when trying to open in library manager. 141, No. some ports of the device may be defined by explicit equations whereas the others are defined by implicit equations. In setting up the initial tutorial schematic (voltage divider), all goes well. I have a number of them for Qucs 0. QUCS CHECKER ERROR NO ACTIONS DEFINED LICENSE Qucs, briefly for Quite Universal Circuit Simulator, is a circuit simulator with graphical user interface (GUI). Components defined in the frequency domain. Uses ADMS 2. The first step is a very simple resistive circuit with a switch to bypass one of the resistors. 1. Compilation went fine. checker error, no actions defined: nothing to do The problem with this The table below is a quick summary of the 184 components currently available in Qucs. . cpp // Class for polynoms wi Qucs-S was forked from the Qucs cross-platform circuit simulator in 2017. h> 00027 00028 #include <QProcess> 00029 #include <Q3PtrList> 00030 #include <QRegExpValidator> 00031 #include <QLineEdit> 00032 #include <QAction> 00033 #include <QStatusBar> 00034 #include <QMessageBox> 00035 #include <QFileDialog> 00036 # One of the previous Qucs developers had access to Apple hardware in the past and prepared a Mac package for Qucs. pro file, which is not applicable in our case since qucs don't use . User components are represented in Qucs as subcircuits. Send me an email when anyone response to this However, if you wish to receive a response, please include your email and name. h> 00026 #include <limits. sourceforge. cpp // ladder filter containing inductors L and capacitors C qf_poly. New properties could be added/removed only for user components only at subcircuit creating stage. This does not work for the N Mutual Inductors component (MUTX in the qucsato Qucs Help Documentation, Version 0. It is also possible mix implicit and explicit definitions, i. Definition at line 388 of file eqndefined. 1V Von=4. Quite Universal Circuit Simulator Discussion A circuit simulator with graphical user interface (GUI) Forums Newbie Problem Using QUCS. Import QucsStudio Filter Synthesis source code Draft change log: implementations lc_filter. Examples would be the conversion of a simulated voltage waveform from volts to dBV, the root mean square value of that waveform Dec 26, 2013 · What ever the string value your are returning from the action class method. Many of the ba-sic circuit components and simulation domains found in SPICE are also available in Qucs. 4. Any missteps during the library creation process could cause issues. Then the two big IRL40B N-channel mosfets are used to do the Feb 2, 2020 · Removed all qucs and qucs-s components then installed latest qucs (and qucsator) from git. Hot Network Questions Did the use of the term Prime Minster in the UK originate as ridicule? qucs-bugs; qucs-devel; qucs-help [Qucs-help] Qucs ERROR PROGRESS 100% ERROR AND WARNINGS: checker error, no actions defined: nothing to do With regards ALOKE Users are no longer required to manually edit C++ code and the build system to be able to run Verilog-A models. g. , Vol. 1 Passive Devices 4. qucsator 0. Aug 22, 2018 · I'm sorry I realized now that this was not the correct issue for reporting problem about transient BJT that is instead issue Qucs/qucs#41 ; btw I confirm that using different transistor model 2N3906 in place of a BC557B it works ; working sim circuit can be found here. 1 Resistor R:Name Node1 Node2 [Parameters] Parameter Name Default Value Mandatory R ohmic resistance in Ohms n/a yes Temp simulation temperature in degree Celsius 26:85 no Tc1 rst order temperature coe cient 0:0 no Tc2 second order temperature coe cient 0:0 no Tnom temperature at which parameters were That’s what i’ve been trying to do for the past month, and so far, no one can explain how to do such a simple task. ”S” letter indicates SPICE. I then downloaded several examples from http://qucs. 10 relied on macromodelling for functional model development via the Qucs schematic interface. " So I followed the Getting Started (Analog Analysis) example, right to the letter I think, and I get the same error. I do not see the list of my wire labels. The Library works in LTspice as-is. txt; run python demo. G ( x ) = 1 σ 2 π exp ⁡ ( − ( x − μ ) 2 2 σ 2 ). Ngspice, Xyce and SPICE OPUS post-simulation data processing with Qucs-S and Octave; Chapter 7. checker error, no actions defined: nothing to do The problem with this Struts2 on action button HTTP Status 404 - There is no Action mapped for namespace / and action name add 0 Struts 2.