What is LabVIEW MathScript​?
The subject of this forum, LabVIEW MathScript, is a new
feature for LabVIEW 8 that adds math-oriented, textual programming to LabVIEW.
MathScript joins graphical dataflow programming as another means to define the
custom software you develop using LabVIEW. Working with LabVIEW, you can choose
a textual approach, a graphical approach, or a combination of the two. You can
choose the most effective syntax for technical computing, whether you are
developing algorithms, exploring signal processing concepts, or analyzing
results. The significance of LabVIEW and MathScript lies in this “best of both
worlds” approach that it facilitates.
At the heart of LabVIEW MathScript is a high-level text-based
programming language with syntax and functionality that abstracts the
complexity of tasks related to signal processing, analysis, and math. MathScript
includes more than 500 built-in functions for such work so you can define your
own new user-defined functions. MathScript is generally compatible with m-file
script syntax, the syntax widely used by alternative technical computing
software such as The MathWorks, Inc. MATLAB® software, Comsol, Inc.
COMSOL ScriptTM software and others.
Such compatibility means that you can work with many previously developed m-file
scripts such as those available in engineering textbooks or on web sites that
distribute open-source m-file scripts.
Please visit http://ni.com/mathscript for more
information about LabVIEW MathScript including:
Inside
MathScript
A white paper with a more extensive overview
Function
Lists
Complete and abridged lists of built-in LabVIEW MathScript functions
Examples
Links to online examples for LabVIEW MathScript
Much more…
MATLAB® is a registered trademark of The MathWorks, Inc. All other trademarks are the property of their respective owners.
Sam Shearman
Hello,
Thank you very much for your idea. It is just what I was looking for. I have used the polynomial evaluation.
My origin polynomial is an acquired signal V(t) and I get a new signal G(t) that takes value each second. I would like
a more continues signal. For example it changes each 0.2 second. Have I to modify something in the polynomial evaluation.vi?
Thank you very much for your time. Sincerely,
John
Attachments:
draw.jpg 961 KB
V(t).jpg 600 KB
G(t).jpg 600 KB
Similar Messages
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User defined function error in Labview mathscript
I m Labview 2011 user. I had a problem when i use a user defined func in mathscript.
I have used it well, but it doent work suddenly. It looks like below.
function name turned to grey color suddenly. Plz help me.The last time I dealt with this, it was very confusing. If I remember correctly, there were 3 different places that I had to set the correct search path for the .m file:
1) Tools>Options>MathScript
2) In the Project, right-click on My Computer and select Properties>MathScript
3) Tools>MathScript Window>File>LabVIEW MathScript Properties
The documentation seems to indicate that at least 1 and 2 should be the same and 3 only applies to that window, but like I said, last time I did this I remember having to change all three.
Good luck!
Chris
Certified LabVIEW Architect
Certified TestStand Architect -
In-browser LabVIEW MathScript Online Evaluation is now in beta...
MathScript Online Evaluation Beta is Live!
http://www.ni.com/mathscript >> Test Drive LabVIEW MathScript Today
National Instruments LabVIEW MathScript adds math-oriented, textual programming to NI LabVIEW. You can use the MathScript Online Evaluation to test your scripts in MathScript before you purchase or download the LabVIEW development system.
Free online utility generally compatible with widely used m-file script syntax
Easy-to-use interactive script prototyping environment
Streamlined algorithm development for Math, Signal Processing, and Control Design
http://www.ni.com/mathscript for more informationI already owned 10 copies of MathScript as part of the NI Developer Suite. All ten Serial Numbers were, and are now, currently on SSP.
MathScript was taken away from me as part of the LabVIEW 2009 Upgrade.
Everybody that owns Developer Suite and MathScript and has a current SSP has had their MathScript taken away from them as part of LavVIEW 2009 upgrade.
They will need to repurchase MathScript again.
Shame on you NI. This is appalling and horrific. -
Hi ,
This is Sreenivas.I have started working on NI-5640R LabVIEW card.I need to generate some modulations(QPSK,GMSK,OOK and 4-FSK) with Fc 21.4 Mhz. Successfully i completed all these modulation in MATALB.
In labview 8.2, LabVIEW Mathscript future is there.
Plz tell me how i have to use it.where i need to write my matlab code in Labview Mathscript.Directly i can copy my m-code into command window or script editor.
plz tell me procedure.
I am using LabVIEW 8.2 and card NI-5640R(PCI based) v 1.1
Thanking you
with regards,
Sreenivasulu.OHi Sreenivasulu.O,
Smercurio has provided some great information on this! He is right in saying that you have to use NI-DAQmx to acquire/generate data. Here is a link that gives you information on using MathScript to get you started with it. Here is another link that gives you information on transferring information from Matlab and vice versa.
Good luck with your application!
Warm regards,
Karunya R
National Instruments
Applications Engineer -
LabVIEW MathScript - loadlibrary
in Matlab, the below commands are able to produce neat results to display functions from NI-488.DLL. However in LabVIEW MathScript, it has problems.
>> loadlibrary('ni488.dll', 'ni488.h')
>> libfunctions('ni488')
Functions in library ni488:
AllSpoll SendDataBytes ibcac ibloc ibsad
DevClear SendIFC ibclr iblock ibsic
DevClearList SendLLO ibcmd iblockxA ibsre
EnableLocal SendList ibcmda iblockxW ibstop
EnableRemote SendSetup ibconfig ibnotify ibtmo
FindLstn SetRWLS ibdev ibonl ibtrg
FindRQS TestSRQ ibdiag ibpad ibunlock
PPoll TestSys ibdma ibpct ibunlockx
PPollConfig ThreadIbcnt ibeos ibpoke ibwait
PPollUnconfig ThreadIbcntl ibeot ibppc ibwrt
PassControl ThreadIberr ibexpert ibrd ibwrta
RcvRespMsg ThreadIbsta ibfindA ibrda ibwrtfA
ReadStatusByte Trigger ibfindW ibrdfA ibwrtfW
Receive TriggerList ibgts ibrdfW
ReceiveSetup WaitSRQ ibist ibrpp
ResetSys ibask iblck ibrsc
Send ibbnaA iblines ibrsp
SendCmds ibbnaW ibln ibrsv
>> libfunctions ni488 -full
Functions in library ni488:
[int16Ptr, voidPtr] AllSpoll(int32, int16Ptr, voidPtr)
DevClear(int32, int16)
int16Ptr DevClearList(int32, int16Ptr)
int16Ptr EnableLocal(int32, int16Ptr)
int16Ptr EnableRemote(int32, int16Ptr)
[int16Ptr, int16Ptr] FindLstn(int32, int16Ptr, int16Ptr, int32)
[int16Ptr, voidPtr] FindRQS(int32, int16Ptr, voidPtr)
voidPtr PPoll(int32, voidPtr)
PPollConfig(int32, int16, int32, int32)
int16Ptr PPollUnconfig(int32, int16Ptr)
PassControl(int32, int16)
voidPtr RcvRespMsg(int32, voidPtr, int32, int32)
voidPtr ReadStatusByte(int32, int16, voidPtr)
voidPtr Receive(int32, int16, voidPtr, int32, int32)
ReceiveSetup(int32, int16)
int16Ptr ResetSys(int32, int16Ptr)
voidPtr Send(int32, int16, voidPtr, int32, int32)
voidPtr SendCmds(int32, voidPtr, int32)
voidPtr SendDataBytes(int32, voidPtr, int32, int32)
SendIFC(int32)
SendLLO(int32)
[int16Ptr, voidPtr] SendList(int32, int16Ptr, voidPtr, int32, int32)
int16Ptr SendSetup(int32, int16Ptr)
int16Ptr SetRWLS(int32, int16Ptr)
voidPtr TestSRQ(int32, voidPtr)
[int16Ptr, voidPtr] TestSys(int32, int16Ptr, voidPtr)
int32 ThreadIbcnt
int32 ThreadIbcntl
int32 ThreadIberr
int32 ThreadIbsta
Trigger(int32, int16)
int16Ptr TriggerList(int32, int16Ptr)
voidPtr WaitSRQ(int32, voidPtr)
[int32, voidPtr] ibask(int32, int32, voidPtr)
[int32, voidPtr] ibbnaA(int32, voidPtr)
[int32, voidPtr] ibbnaW(int32, voidPtr)
int32 ibcac(int32, int32)
int32 ibclr(int32)
[int32, voidPtr] ibcmd(int32, voidPtr, int32)
[int32, voidPtr] ibcmda(int32, voidPtr, int32)
int32 ibconfig(int32, int32, int32)
int32 ibdev(int32, int32, int32, int32, int32, int32)
[int32, voidPtr] ibdiag(int32, voidPtr, int32)
int32 ibdma(int32, int32)
int32 ibeos(int32, int32)
int32 ibeot(int32, int32)
[int32, voidPtr, voidPtr] ibexpert(int32, int32, voidPtr, voidPtr)
[int32, voidPtr] ibfindA(voidPtr)
[int32, voidPtr] ibfindW(voidPtr)
int32 ibgts(int32, int32)
int32 ibist(int32, int32)
[int32, voidPtr] iblck(int32, int32, uint32, voidPtr)
[int32, voidPtr] iblines(int32, voidPtr)
[int32, voidPtr] ibln(int32, int32, int32, voidPtr)
int32 ibloc(int32)
int32 iblock(int32)
[int32, voidPtr] iblockxA(int32, int32, voidPtr)
[int32, voidPtr] iblockxW(int32, int32, voidPtr)
[int32, voidPtr, voidPtr] ibnotify(int32, int32, voidPtr, voidPtr)
int32 ibonl(int32, int32)
int32 ibpad(int32, int32)
int32 ibpct(int32)
int32 ibpoke(int32, int32, int32)
int32 ibppc(int32, int32)
[int32, voidPtr] ibrd(int32, voidPtr, int32)
[int32, voidPtr] ibrda(int32, voidPtr, int32)
[int32, voidPtr] ibrdfA(int32, voidPtr)
[int32, voidPtr] ibrdfW(int32, voidPtr)
[int32, voidPtr] ibrpp(int32, voidPtr)
int32 ibrsc(int32, int32)
[int32, voidPtr] ibrsp(int32, voidPtr)
int32 ibrsv(int32, int32)
int32 ibsad(int32, int32)
int32 ibsic(int32)
int32 ibsre(int32, int32)
int32 ibstop(int32)
int32 ibtmo(int32, int32)
int32 ibtrg(int32)
int32 ibunlock(int32)
int32 ibunlockx(int32)
int32 ibwait(int32, int32)
[int32, voidPtr] ibwrt(int32, voidPtr, int32)
[int32, voidPtr] ibwrta(int32, voidPtr, int32)
[int32, voidPtr] ibwrtfA(int32, voidPtr)
[int32, voidPtr] ibwrtfW(int32, voidPtr)
%% below script written for MathScript, but it gives some errors. why?
%% take note ni488.dll and ni488.h files must be in the working directory. I attached both files here.
if libisloaded('ni488.dll')
unloadlibrary('ni488.dll')
end
loadlibrary('ni488.dll', 'ni488.h')
libfunctionsview('ni488.dll')Hola;
La versión de LabVIEW 64 bits no tiene este módulo, de hecho es una versión limitada únicamente a ciertas herramientas. Te recomiendo que descargues e instales la versión de 32 bits (aunque tu máquina esté corriendo en 64).
Yo estoy corriendo win 7 64 bits con LabVIEW 2013 de 32 y funciona a la perfección.
Puedes descargar la herramienta desde aquí debajo de LabVIEW 2013 Toolkits and Modules
Exito en tu aplicación -
What does LabVIEW mean by "Error 71: File Datalog Type Conflict"
What does LabVIEW mean by "Error 71: File Datalog Type Conflict" (Hex code:47)
Thank you.Please provide us further information on when you are getting the error and what the functionality of the VI is. That would help us to troubleshoot your issue.
Is the error caused by a similar situation as the one descibed in this KnowledgeBase?
Best regards,
Philip C.
National Instruments
- Philip Courtois, Thinkbot Solutions -
What is Labview scripting?
What is LabVIEW scripting? I have seen it being mentioned on this and lavag forums? What can we do with it (that normal programming does not allow)? Where can I learn about it?
Imagine a building: This is LabVIEW.
This building has several levels. The entrance is all nice and shiny. This is the Express and whatever stuff meant for starters with LabVIEW. Then there are some levels with more or less involved rooms. Things like doing DAQ, Instrument Control, Advanced functionality to control the bits and bytes in LabVIEW. Above that there is an attic. It was built somewhere along with the rest but never really finshed. It contains stuff developed by LabVIEW developers for their own internal use or as as a proof of concept. These things have lots of sharp edges, rusty nails sticking out and all in all can be very powerful but at the same time also make the entire building crumble down if you happen to pull at the wrong beam.
What it means is this is stuff that exists in LabVIEW, but hasn't been designed to be used by the average LabVIEW user at all. It's mostly unfinshed work in progress, unpolished, raw and with the possibility for some nasty results. It may work, or not, crash your system, eat your favorite chocolate chips cookies, or do something completely different a computer is never supposed to do. The warnings you have gotten so far simply mean, you can try to use it but if you scratch your skin on one of those rusty nails don't blame anyone but yourself for being not carful enough.
Rolf Kalbermatter
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions -
Can LabVIEW Mathscript be used with Speedy 33?
I am having SPEEDY 33. Whether I can program Mathscript functions using LabVIEW 8.6 or 2009? Or any solution to include Mathscript in SPEEDY 33?
Hello,
Unfortunately, at this time, LabVIEW MathScript is only supported on the desktop platform.
Grant M.
Staff Software Engineer | LabVIEW Math & Signal Processing | National Instruments -
Can Labview Mathscript be use with speedy-33?
i had Labview version 7.1, 7.1 embedded, 8.0 and 8.2 but it seem like i cant use mathscript on speedy-33.
Hello,
Unfortunately, at this time, LabVIEW MathScript is only supported on the desktop platform.
Grant M.
Staff Software Engineer | LabVIEW Math & Signal Processing | National Instruments -
Mathematica output formula to labview mathscript
I've been working on developing general error propagation equations based upon empirical equations in mathematica, and the outputs are extremely long. Instead of sitting and copying each line of the output to labview mathscript, is there a quicker way to copy this over?
You can save all the equations to an m-file and then import the whole file.
Jarrod S.
National Instruments -
Hi,
i am sreenivasuluI need to generate some modulated(AM,BPSK,QPSK 4-FSK and GMSK) signal.
i successfully completed all these modulation in Matlab.how can use that m.file directly to this labview or any indirect method is there.
tell me how i ahve to use that m files or tell me procedure to generate modulated signal using LabVIEW MathScript.
actually i am working on LabVIEW 8.2 with ni 5640R(PIC) Hardware card.
after generating this signal i can communicate with this card.if YES tell me procedure.
if possible send me some VIs.
Final my goal is i need to generate some modulated(AM,FM,FSk,BPSK,QPSK Etc) signal with Fc
21.4MHz for providing as a input to other module(RAD-2,Pentaland).
I am using LabVIEW 8.2 and card NI-5640R(PCI based) v 1.1
Thanking you so much sir.
Thanks & regards,
Sreenivasulu.OHello,
The script you currently have in the MathScript node generates a real output. If you wish to convert it to complex, you can simply drop the "To Double Precision Complex" conversion bullet located in the Programming >> Numeric >> Conversion palette.
In looking at the second loop in your VI, you don't need to use the "Get Waveform Components" element because MathScript does not currently output a waveform datatype. Simply use the vector directly.
Grant M.
Staff Software Engineer | LabVIEW Math & Signal Processing | National Instruments
Message Edited by GrantM on 03-14-2008 09:14 AM
Attachments:
ToComplex.png 4 KB -
What is labview digital write-to-line logic high voltage?
i'm using a pci-6503 daq hardware and cb-50lp.I'm currently doing a project to interface a labview vi to a programmable chip(downloaded with a vhdl program),using the daq hardware.The chip must function according to the labview program.I'm using 2 digital write-to-lines and 6 digital read-from-lines to interface to the chip.
Problem:
the 6 digital read-from-lines are able to read from the chip,but the 2 digital write-to-lines are unable to reach a logic high of 5v.This means that the labview vi can only read and unable to write to the chip to function(only one way communication).In the daq wizard,when using the test panel to test the individual lines of port a,b and c,it is able to write a good
logic low and good logic high(5v),even when all the lines are being used altogther.But when the labview vi is being run, the write-to-line cannot write a good logic high,thus unable to interface completely with the chip.
Please advise.Urgent!
graysLabVIEW does not do anything different to the PCI-6503. NI-DAQ outputs the same 5V from MAX and LabVIEW. Are you sure the FPGA isn't driving 0V on the same line? You could test this by putting a small resistor between the FPGA and the DAQ card. See what the voltage is across the resistor.
Even at 2.5mA, the 6503 should output 3.7V. -
I was just wondering what the heck labview is. What does it do? What is it good for? I don't know but it seems kind of weird to me. If someone could elaborate on this issure for me, i would like that. Can you make applications with it or something. If you can't, then that program sucks.
LabVIEW is a very powerful programing environment. Because of the graphical nature of LabVIEW, it is different than programing in any other language. Yes, you can make applications. The uses of LabVIEW are as diverse as the users. For example, you can make anything from games to very useful and complex programs.
Currently I am working as a summer intern at a major manufacturing company. I am developing a gauge that will measure parts that we manufacture. I am using LabVIEW to control my data acquisition equiptment, as well as provide motion control for a linear slide and a rotary indexer. This is just one example of what LabVIEW can do. I am sure that users that are much more advanced than myself could describe more complex and interesting things they are doing with LabVIEW, as I have barely scratched the surface in my limited exposure thus far.
I encourage you to use this discussin forum to your advantage if you are going to use LabVIEW. Be respectful to the users, and they are a great resource. I have learned a lot from them thus far. As a side note, I am teaching myself LabVIEW as I go along; I did work through LabVIEW Basics I and Basics II.
Continue to browse this forum and the LabVIEW Development Zone, and you will see that the possibilities are endless! -
LabVIEW MathScript computation speed improvement
I am using a MathScript node to make calculations on an sbRIO FPGA module and the speed of these computations is critical. What are some ways to improve the speed of calculations and is there a faster way to do matrix calculations than MathScript? If I make the MathScript portion into a subVI will it improve the speed of calculations?
Thanks for any ideas
Solved!
Go to Solution.Please look at the attached VI. It has your original .m code, my modifications to your .m code, and the G code equivalent to the modified .m code. First, let me describe to you the numbers I saw on a cRIO 9012 for each of the three approaches.
I ran each of the three approaches for hundred iterations, ignored the first 30 iterations to allow for memory allocations (which caused a huge spike in run-time performance on RT), and then took the average run-time for each loop iteration for the remaining iterations
Original M: 485 msec/iteration
Modified M: 276 msec/iteration
G: 166 msec/iteration
The modifications I made to your .m code are the following:
(1) Added ; to end of each line to suppress output (used for debugging)
(2) Moved the random code generation out - used whitenoise (seems like that's what you were doing)
(3) Switch on the data type highlighting feature. Noticed that majority of the data was casted to complex, although didn't seem like you needed the complex domain. The source was sqrt function. Modified it to using real(sqrt(...))
This improved performance by over 40%. I believe more can be squeezed if you follow the documentation - Writing MathScript for Real-Time Applications.
Then, I took the MathScript you had and wrote equivalent G leaving the algorithm as is. This gave us performance improvement of another 40% over the modified G. This is a known issue that on slow controllers MathScript adds a 2x penalty to equivalent G. We are currently investigating this issue and may be able to fix it in a future release.
If you profile the G code, you will notice that most of the time is spent in matrix multiplication. Unless you rethink your algorithm, I doubt this can improve further.
Let me know if you have questions
Regards,
Rishi Gosalia
Attachments:
Mathcript_efficiencyProblem Modified.vi 255 KB
MathScript_efficiencyProblem_G.vi 62 KB -
I recently upgraded labview 8.6 to labview 2010, and I can't get mathscript to activate. I was given an activation code for mathscript, but it is rejected by license manager.
Is mathscript now a seperate module that must be purchased ?
That means I lost the ability to use mathscript when I upgraded from 8.6 to 2010 ?Mathscript became a separate module a few years ago. See this thread about it. If I remember correctly, users with an active SSP could activate it with their upgrade to 2009. It may have been for a limited time though. Check with your local Sales Engineer.
Just curious, why long to upgrade and why not to the latest version?
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