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Also according to Wikipedia ,

"Pseudocode is an informal high-level description of the operating principle of a computer program or other algorithm. It uses the structural conventions of a programming language, but is intended for human reading rather than machine reading. Pseudocode typically omits details that are not essential for human understanding of the algorithm...
The purpose of using pseudocode is that it is easier for people to understand than conventional programming language code, and that it is anefficient and environment-independent description of the key principles of an algorithm."

The sequence structure

We can describe the sequence structure using the pseudocode shown in Image 1 .

Image 1. the sequence structure in pseudocode.

Enter Perform one or more actions in sequenceExit
Image 1. The sequence structure in pseudocode.

Thus, the general requirement for the sequence structure is that one or more actions may be performed in sequence after entry and before exit.

There may not be any branches or loops between the entry and the exit.

All actions must be taken in sequence.

The action elements themselves may be structures

However, it is important to note that one or more of the action elements may themselves be sequence, selection, or loop structures.

If each of the structures that make up the sequence has only one entry point and one exit point, each such structure can be viewed as a single action elementin a sequence of actions.

The sequence structure is the simplest of the three, and there's not much more that I can say about it.

The selection structure

The selection or decision structure can be described as shown in the pseudocode in Image 2 .

Image 2. the selection structure in pseudocode.

Enter Test a condition for true or falseOn true Take one or more actions in sequenceOn false Take none, one, or more actions in sequenceExit
Image 2. The selection structure in pseudocode.

Test a condition for true or false

Once again, there is only one entry point and one exit point.

The first thing that happens following entry is that some condition is tested for true or false .

The concept of something being true or false is commonly referred to as a boolean condition in computer programming (named after George Boole) .

If the condition is true, one or more actions are taken in sequence and control exits the structure.

If the condition is false, none , one or more different actions are taken in sequence and control exits the structure. (Note the inclusion of the word none here.)

The action elements themselves may be structures

Once again, each of the action elements in the sequence may be another sequence, selection, or loop structure.

Eventually all of the actions for a chosen branch will be completed in sequence and control will exit the structure.

Sometimes no action is required on false

It is often the case that no action is required when the test returns false. In that case, control simply exits the structure without performing any actions.

The loop structure

The loop or iteration structure can be described as shown in the pseudocode in Image 3 .

Image 3. the loop structure in pseudocode.

Enter Test a condition for true or falseExit on false On truePerform one or more actions in sequence. Go back and test the condition again
Image 3. The loop structure in pseudocode.

As before, there is only one entry point and one exit point. Note that in this case, the exit point is not at the end of the pseudocode. Instead,it follows the test.

Questions & Answers

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
Do somebody tell me a best nano engineering book for beginners?
s. Reply
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?
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
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
what is the k.e before it land
what is the function of carbon nanotubes?
I'm interested in nanotube
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
what is system testing
what is the application of nanotechnology?
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
anybody can imagine what will be happen after 100 years from now in nano tech world
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
silver nanoparticles could handle the job?
not now but maybe in future only AgNP maybe any other nanomaterials
I'm interested in Nanotube
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Teaching beginners to code. OpenStax CNX. May 27, 2013 Download for free at http://cnx.org/content/col11498/1.20
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