What is LabVIEW MathScript?

[sshearman]

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 Script^TM 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…

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MATLAB^® is a registered trademark of The MathWorks, Inc. All other trademarks are the property of their respective owners.

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[jonssc]

Hello,

I´m working with Labview acquiring data and I would like to do the following operation with the mathscript if it is posible.

I have an acquire signal like F=f(V,t) an d I would like to change the x axe value to have G=g(G,t) . Where G=a+b*V+c*V^2+d*V^3.

Then represent the new signal in a wavegraph.

I think it could make easy with Matha Script but I don´t get the correct code. I only get a  G value like a number, not like real time signal.

Thank you very much for you attention. Iwould be very grateful for some idea.

Sincerely,

John.

[altenbach]

Sorry, I don't quite understand your nomenclature. Is your data two dimensional? Isn't  "t" the x-axis?

In any case, you probably don't need mathscript. Just use "polynomial evaluation", e.g. as follows (assuming your data is a 1D array of V values, one for each t).

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Message Edited by altenbach on 02-14-2008 09:16 AM

[jonssc]

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

[jonssc]

Hello,

Excuse me but it doesn´t work as well I though. The Polynomial G(t) returns almost the same values that the origin Polynomial V(t). For example for V(1) = 3;  G(1)= 3.12 and it must be G(1)= 40, more or less. Do you know if  have to chage some parameters on th Polynomial evaluation.vi?

Thanks a lot. Sincerely,

John. 

[altenbach]

It looks like you have the inputs reversed!

The polynomial coefficients go to the lower input terminal and the data array to the upper input terminal of polynomial interpolation. Check the online help. 😉

[jonssc]

Thank you very much.

You was on right. I don´t know the easest problems and some others too.

Thanks a lot, sincerely,

John

[McArthur]

Thank you for your explain....

[McArthur]

By the way, how to post the new question??

Thankyou 

[jyang72211]

How does the speed and memory efficient of mathscript compared to using regular mathematical blocks in labview when I am doing some complicated math operational or conditional selections?