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The methods named f1, f2, f3, f4, and f5

As you can see in Listing 1 , each of these methods receives a double value as an incoming parameter and returns a double value. In essence, each of these methods receives a value for x and returns the corresponding value for y .

One plotting area per method

Each of these methods provides the data to be plotted in one plotting area. The method named f1 provides the data for the top plotting area, the method named f2 provides the data for the first plotting area down from the top, and so forth.

(For example, if the getNmbr method returns a value of 4, the method named f5 will never be called. If getNmbr returns 5, the method named f5 will be called to provide the data for the bottom plotting area.)

How does it work?

Each plotting area contains a horizontal axis. The plotting program moves across the horizontal axis in each plotting area one step at a time (moving in incremental steps equal to the plotting parameter named xCalcInc ) .

At each step along the way, the plotting program calls the method associated with that plotting area, ( f1 , f2 , etc.) , passing the horizontal position as a parameter to the method.

The value returned by the method is assumed to be the vertical value associated with that horizontal position, and that is the vertical value that isplotted for that horizontal position.

Doesn't know and doesn't care

The plotting program doesn't know, and doesn't care how the method decides on the value to return for each value that it receives as an incoming parameter.The plotting program simply calls the methods to get the data, and then plots the data.

Computed "on the fly"

For example, the returned values could be computed and returned "on the fly" as is the case in the sample program named Graph01Demo , which we will look at shortly.

Returned from an array

On the other hand, the values could have been computed earlier and saved in an array, as will be the case in the sample program named Dsp002 example that we will look at later.

From a disk file, a database, the internet, etc.

The returned values could be read from a disk file, obtained from a database on another computer, or obtained from any other source such as another computeron the internet. All that matters is that when the plotting program named Graph01 calls one of the five methods named f1 through f5 , passing a double value as a parameter, it expects to receive a double value as a return value, and it will plot the value that it receives.

It is up to you

It is up to you, the author of the data-generator program, to decide how you will implement the methods named f1 through f5 . In some cases, the implementation may be simple. In other cases, the implementation may be morecomplex. The first case that we will examine, Graph01Demo , is very simple. A subsequent case, Dsp002 , is not so simple.

The class named Graph01Demo

Although this is a very simple class definition, I am going to break it down and discuss it in fragments in order to help you focus your attention on theimportant points. A complete listing of the class definition is shown in Listing 37 near the end of the module.

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
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
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
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Source:  OpenStax, Digital signal processing - dsp. OpenStax CNX. Jan 06, 2016 Download for free at https://legacy.cnx.org/content/col11642/1.38
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