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The creation of this content was supported in some part by NSF grant 0538934.

Any G program can become a function. Three operations must be done:

  1. Edit connecting input and/or output terminals
  2. Edit the icon (optional but recommended)
  3. Save the G program


Open the Fibonacci.vi for this example.

On the Front Panel window, right click on the icon located on the right upper corner of the window and select Show Connector .

A screen cap of a windows window with a menu present. The item  'show connector'is highlighted.
Show Connector Pane

This brings up the connector pane as shown in [link] .

A screen cap of a windows window showing a 'connector pane'.
Connector Pane

Right click on the connector pane and select Patterns . A menu with connector patterns is presented from which you can select the appropriate pattern. For this example select the pattern highlighted in [link] .

A screen cap of a windows window showing a menu with the item 'patterns' highlighted and a row of icon indicating which patterns can be selected for the Connector Pattern.
Select Connector Pattern

Click on the connector terminal followed by a click on the input or output control to which the terminal is to be associated. In [link] , the left connector terminal is associated with the numeric input control n .

A screen cap with the left side of the Connector pane selected and the left field selected.
Associating Terminals

Repeat for all the input and output controls that are to be associated to the terminals. For the Fibonacci.vi , [link] shows the right connector terminal associated with the Fib(n) output terminal.

A screen cap with the left side of the Connector pane light blue and the right side dark blue.
Connected Terminals

Icon editor

Right click on the connector pane and select Edit Icon… from the pop-up menu. This will bring the icon editor ( [link] ).

Edit the icon for black and white, 16-color and 256-color displays and click OK when completed.

Save the G program to complete the function.

A screen cap of a windows window with a menu on top. The item 'edit icon' is highlighted in the menu.
Selecting Icon Editor
An icon editor window.
Icon Editor

Invoking functions

To invoke functions, right click on the Block Diagram window and select Select a VI… from the pop-up menu. This will bring a file dialog box. Find the desired function to be part of the program and click OK .

A screencap of the 'Functions' window.
Invoking Functions

In the example shown in [link] , the Fibonacci series of the first 20 Fibonacci numbers is stored in an array. The numbers are computed by invoking the Fibonacci.vi function.

A screencap of the 'Fibonacci Series' function.
Fibonacci Series

Questions & Answers

What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
characteristics of micro business
for teaching engĺish at school how nano technology help us
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
what is the actual application of fullerenes nowadays?
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Introduction to g programming. OpenStax CNX. Mar 15, 2010 Download for free at http://cnx.org/content/col11192/1.1
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