# 1.1 Variables in labview mathscript

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This module provides a brief introduction to the use of variables in LabVIEW MathScript.

## Variables in labview mathscript

A variable in LABVIEW MATHSCRIPT is a named value. Using variables allows us to manipulate values symbolically, which is particularly useful when programming.

Suppose we wish to compute the circumference of a circle of diameter 5 units using the formula $c=\pi d$ . We could first set the variable d to a value of 5: >>d = 5 d =5.000 Then we could compute the circumference and assign its value to the variable c : >>c = pi*d c =15.708 To execute this command, LABVIEW MATHSCRIPT computes the product of the value of d (which LABVIEW MATHSCRIPT knows because we earlier set it to 5) and the value of pi (which is a pre defined variable in LABVIEW MATHSCRIPT) and stores the value of the product in the variable c .

Variable names must begin with an upper- or lower-case letter. They may contain letters, digits, and underscores; they may not contain spaces or punctuation characters. LABVIEW MATHSCRIPT is case sensitive, so A and a are different variables.

## Valid variable names

Which of the following are valid variable names?

• a
• B
• ecky_ecky_ecky_ecky_ptang_zoo_boing
• ecky ecky ecky ecky ptang zoo boing
• 2nd
• John-Bigboote

• Valid.
• Valid.
• Valid.
• Invalid, because the variable name contains spaces.
• Invalid, because the variable name begins with a number.
• Invalid, because the variable name contains a dash.

LABVIEW MATHSCRIPT has several predefined variables. The most commonly used include

• ans - the default variable in which computation results are stored.
• pi - π.
• i or j - $\sqrt{-1}$ .
Once assigned, variable names remain until they are reassigned or eliminated by the clear command.

LABVIEW MATHSCRIPT variables can contain several types of numerical values. These types include the following:

• Scalar values - scalar is a mathematical term for a single value (i.e. a number). c and d in are scalar variables.
• Vectors - a vector is an ordered series of numbers.
• strings - LABVIEW MATHSCRIPT variables may also contain strings of characters.

What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
why we need to study biomolecules, molecular biology in nanotechnology?
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
why?
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
what does nano mean?
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
it is a goid question and i want to know the answer as well
Maciej
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
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NANO
what is fullerene does it is used to make bukky balls
are you nano engineer ?
s.
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.
Tarell
what is the actual application of fullerenes nowadays?
Damian
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.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
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Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
for screen printed electrodes ?
SUYASH
What is lattice structure?
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
what's the easiest and fastest way to the synthesize AgNP?
China
Cied
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