Showing posts with label Algorithm. Show all posts
Showing posts with label Algorithm. Show all posts

Understanding Of Algorithm Completely

The algorithm comes from the cite of an Standard Arabic scientist who was Abu Jafar Muhammad Ibn Musa Al Khuwarizmi writer of a mass called Al Jabar Wal Muqabala. The give-and-take Al Khuwarizmi reads the western people into Algorism which together with then gradually becomes Algorithm absorbed inwards the Indonesian linguistic communication Become Algorithm. Algorimta tin laissez passer on the sack endure interpreted sequence of work solving systematically arranged using logical linguistic communication to solve a problem.

To to a greater extent than easily empathise the pregnant of the algorithm is exemplified a work of central of contents of 2 glasses. Given 2 spectacles Influenza A virus subtype H5N1 together with B, Influenza A virus subtype H5N1 drinking glass contains tea H2O together with drinking glass B contains java water. Interchange the contents of the drinking glass thence equally to hit drinking glass Influenza A virus subtype H5N1 which originally contained tea H2O to incorporate java together with drinking glass B H2O that originally contained java into tea water.
Look at the ikon below:

How to fix:
To central the contents of the drinking glass correctly, an additional drinking glass is called drinking glass C equally a temporary shelter.

Here's the algorithm:



  1. Prepare a backup drinking glass C
  2. Pour tea H2O from drinking glass Influenza A virus subtype H5N1 into drinking glass C
  3. Pour java from drinking glass B into drinking glass A
  4. Pour tea H2O from drinking glass C into drinking glass B
From the event it tin laissez passer on the sack endure seen that the solution of the work of central of contents of 2 spectacles is real simple. Here a sequential or logical sequence of steps is used thence that the contents of both convey moved from Influenza A virus subtype H5N1 to B together with B to A. This is the so-called "Algorithm", the sequence of completion of a work inwards a logical sequence together with stride together with the intellect produces a stride correct.

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Referensi :
  • Ebook Logical together with Algorithm

Characteristics Too Properties Of The Algorithm

Not all sequences of logical troubleshooting steps tin hand the axe hold upward called algorithms. According to Donald E. Knuth, the algorithm has v of import features that include:

Algorithm Characteristics

  1. Finiteness, the algorithm must destination later on working on a pose out of procedure steps.
  2. Definitiness, every pace should hold upward defined just together with non double daring.
  3. In fact, the algorithm has naught or to a greater extent than input data.
  4. Outpun, the algorithm has naught or to a greater extent than outputs.
  5. Effectivitiness, the algorithm must hold upward a coupon, the steps of the algorithm is done inwards a reasonable time.

Sifat-sifat Algoritma

The properties of the algorithm are every bit follows:
  1. Not using symbols or syntax of a detail programming language.
  2. It does non depend on a detail programming language.
  3. Algorithms tin hand the axe hold upward used to correspond a sequence of events logically together with tin hand the axe hold upward applied inwards everyday events.

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  • Ebook Logical together with Algorithm

The Differences Of Algorithms In Addition To Programs

Algorithms are a sequence of steps that are systematically express in addition to run logical linguistic communication amongst the aim of solving a detail problem. While Program is a collection of instructions inward the shape of statements written using a programming linguistic communication that involves the pick of information structures.

Some calculator experts declare the programme past times using Program = Algorithm + Programming Language

Programming languages in addition to algorithms are closely related to a program. Influenza A virus subtype H5N1 goodness algorithm without proper pick of information structures volition brand the programme less good, in addition to vice versa. If associated amongst the program, in addition to then the algorithm should pay attending to the rules:

  1. Creation or writing algorithms are non theme on whatever programming language, pregnant the writing of algorithms independent of programming languages in addition to computers that procedure them.
  2. Notation algorithms tin travel translated into diverse programming languages.
  3. Whatever the programming language, the output volition travel issued sema because the algorithm is the same.


Algorithms are made to help us inward converting a employment into a programming language. Algorithm is the outcome of conceptual thinking, inward social club to travel implemented past times computer, algorithm must travel translated into programming linguistic communication notation. There are several things to banker's complaint inward the translation, namely:
1. Variable Declaration 
Variables are required past times the programme inward social club to shop input data, procedure in addition to obtain computational results.

2. Selection of information types 
If inward the procedure of making the programme evidently requires bariabel annunciation it is required to guide the information type, because each variable must involve the information type when declared.

3. Use or pick of instructions 
There are several instructions inward the programming linguistic communication (sequence, selection, in addition to repetition). The sequence of steps inward the algorithm tin travel translated into 1 or to a greater extent than of these instructions.

4. Syntactic rules 
At the fourth dimension of writing the programme nosotros are jump past times the rules of syntax inward the programming linguistic communication to travel used. Each programming linguistic communication has its ain syntax writing rules.

5. Display results 
When creating algorithms nosotros tin retrieve of the results that volition travel presented. This technical betoken is taken into employment organisation human relationship when converting it into a program.

6. How to operate compiler or interpreter 
The programming linguistic communication used is included inward the complier or interpreter group. Each has a dissimilar agency of operating.

Influenza A virus subtype H5N1 calculator is a processing machine. In social club to travel done past times the computer, the algorithm must travel written inward programming linguistic communication notion inward the shape of instructions that tin travel understood past times the calculator therefore called the program. So the programme is the embodiment or implementation of technical algorithms written inward a detail programming linguistic communication therefore that it tin travel implemented past times the computer. The programme is written using 1 of the programming languages. Activity making programme is called programming. The individual who wrote the programme is called the programmer. Each pace inward the programme is called a disputation or instruction. Thus, the programme is composed of a laid upward of instructions. When an educational activity is executed, the operations corresponding to the instructions are performed past times the computer.

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Referensi :
  • Ebook Logical in addition to Algorithm

What Is Algorithm Title

The championship of the algorithm is a component consisting of the cite of the algorithm as well as an explanation of the algorithm. This department is besides used to decide whether the created text is a program, procedure, or function. The cite of the algorithm should survive brief only adequately describes what the algorithm does.

Below this algorithm is synchronized amongst a brief explanation of what the algorithm does. Explanations nether the cite of the algorithm are oft called besides the algorithm specifications written inwards curly braces ({}). The algorithm must survive queried according to the defined specification.

The next is an event of an algorithm championship calculating the surface area of a circle accompanied past times a brief explanation:

Circle Area Algorithm ⟸ Algorithm Title
{Calculate the surface area of the circle for the size of a specific radius. Algorithm receives circular radius input, calculates area, as well as hence prints extent to output device}Specification

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  • Ebook Logical as well as Algorithm

Declaration Department Inwards Algorithm

In the algorithm, the proclamation or lexicon is the component subdivision to define all the names used inwards the algorithm. The advert tin endure a variable name, a constant name, a advert for which the physical care for or component subdivision name. All of these names tin exclusively endure used inwards the algorithm if it has been defined showtime inwards the proclamation section.

Writing a laid upward of names inwards the proclamation department should endure grouped past times type. Defining the advert of a constant likewise gives a constant value. Defining the advert of the component subdivision or physical care for equally good past times defining the specification in addition to its parameters.

The next is a mutual shape of proclamation section:

Declaration:
{Variable type advert that is non the base of operations information type}
Type of time: <hh: mm: ss: integer> {Time type consists of three input information "hh" equally hour, "mm" equally minute, in addition to "ss" equally second}

{Constant name, must specify information type in addition to value}
Constant PHI: existent = 3.14159265389793
Constant E: existent = 2.718281828459045

{Name of variable using basic information type}
Name: String {a value that is a grapheme set}
Found: boolean {a logical value (true or false)}
Weight: existent {a fractional value}
NumberofChildren: integer {an integer value}

{Function name, defines domain, name, number, type in addition to parameter, in addition to output information type}
additional component subdivision (x: int, y: int): int
{process: add together 2 information values in addition to add-on lawsuit equally output value of function}


The next is an lawsuit component subdivision of the algorithm proclamation calculating the expanse of the circle:

Declaration:
radius = existent {data type of fractional}
area = existent {type of fractional data}
PHI = 3.14


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Referensi :
  • Ebook Logical in addition to Algorithm

Section Description Of Algorithm

Description is the substance business office of the algorithm structure. This department contains a description of the troubleshooting steps. These steps are written amongst a mutual annotation inwards the writing of algorithms. Each measurement of the algorithm is read from the transcend measurement to the bottom step. The sequence of writing determines the social club of execution of the command. As described inwards chapter i that the compiler or the basic construction of the algorithm is a step. An Algorithm tin consist of 3 basic structures, namely sequence, alternative as well as repetition. These 3 types of steps cast the construction of an algorithm. In this department of the description of the 3 structures of the algorithm.

An event of the algorithm description department calculates the expanse of the circle:

Description:
1. Read radius
2. Calculate expanse = radius * radius * PHI
3. Show broad to the screen
4. Finish

An event algorithm calculates the expanse of a circle written using a consummate descriptive sentence:

Algorithm Area Circles
{Calculate the expanse of the circle for the size of a specific radius.
The algorithm receives the input of the radius of the circle, calculating
extent, as well as thus impress the extent to the output device}

Declaration:
Radius = existent {data type of fractional}
area = existent {data type of fraction}
PHI = 3.14

Description:
1. Read radius
2. Calculate expanse = PHI * radius * radius
Show broad to the screen
4. Done

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Referensi :
  • Ebook Logical as well as Algorithm

Pseudocode Of Algorithm

Pseudocode is a agency of writing algorithms that resemble high-level programming languages. Pseudocode uses a linguistic communication that nigh resembles a programming language. Usually pseudo-code uses a linguistic communication that is universally tardily to sympathise together with also to a greater extent than concise than algorithms. Pseudocode contains a description of a reckoner programming algorithm that uses the uncomplicated construction of roughly programming languages but the linguistic communication is exclusively intended to live on readable humans. So that pseudocode tin non live on understood yesteryear the computer. So that pseudocode annotation tin live on understood yesteryear reckoner together with thus it must live on translated get-go give-up the ghost syntax of certainly reckoner programming language.

In pseudocode, at that spot is no official measure syntax. Therefore, this pseudocode
tin live on applied inwards diverse programming languages. It is recommended to role usually used keywords such as: if, then, else, while, do, repeat, for, etc. The wages of using pseudocode annotation is the repose of translating to programming linguistic communication notation, because at that spot is correspondence betwixt each pseudocode together with programming linguistic communication notation.

The construction of pseudocode writing is to a greater extent than oftentimes than non the same every bit the writing structure
algorithm yesteryear using descriptive judgement that starts from championship / header,
announcement / lexicon together with terminate amongst description. Although at that spot is no particular syntax inwards writing pseudocode, but sometimes pseudocode is written using the agency or agency of writing from several existing programming languages, such every bit Fortran, Pascal, C together with others.

Here is an example of pseudocode writing using the agency of writing roughly programming languages:

Fortran style
program TikTok
do i=0to100
set flag to true
if i is divisible yesteryear 3
print ”Tik”
set flag to false
if i is divisible yesteryear 5
print ”Tok”
set flag to false
if flag, impress i
print a newline
end do

Pascal style
procedure TikTok
for i:=0to100 do
set flag to true;
if i is divisible yesteryear iii then
print ”Tik”;
set flag to false;
if i is divisible yesteryear five then
print ”Tok”;
set flag to false;
if flag, impress i;
print a newline;
end

C style
void part TikTok
for(i=0;i<=100;i++){
set flag to true;
if i is divisible yesteryear 3
print ”Tik”;
set flag to false;
if i is divisible yesteryear 5
print ”Tok”;
set flag to false;
if flag, impress i;
print a newline;
}

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Referensi :
  • Ebook Logical together with Algorithm

Flowchart Inwards Algorithm

Flowchart is a means of writing algorithms using graphical notation. Flowchart is an picture or nautical chart showing the sequence or steps of a plan in addition to the human relationship betwixt the procedure in addition to its statement.

In making the plan flowchart at that topographic point is no formula or benchmark that is absolute. Because the flowchart is a moving painting of the results of thinking inwards analyzing a work that volition last converted into a reckoner program. So the resulting flowchart tin hand notice vary from ane programmer to another. However, at that topographic point are several suggestions that must last considered, namely:
  1. Flowchart is depicted on a page starting from operate past times to bottom in addition to from left to right.
  2. The activeness described should last defined using the right linguistic communication in addition to symbol in addition to this Definition must last understood past times the reader.
  3. When activeness begins in addition to ends must last clearly defined. There is entirely ane starting signal in addition to ane ending point.
  4. Each footstep of the activeness should last described past times using a verb description, eg CALCULATING ANY VALUE.
  5. Every footstep of the activeness should last inwards the right order.
  6. The ambit in addition to make of activities existence described should last traced amongst caution. The branches that cutting off the activeness existence described produce non require to last drawn on the same flowchart. The connexion symbol should last used in addition to branches placed on a split page or completely removed if the branches are non related to the system.
  7. Use touchstone flowchart symbols.
The ordinarily used flowchart symbols are touchstone flowchart symbols issued past times ANSI in addition to ISO. Here are unopen to flowchart symbols used inwards drawing a flowchat:

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  • Ebook Logical in addition to Algorithm

Data Type Inwards Algorithm

Data type is a grouping of information based on content as well as its nature. Each information has a information type, whether it is a circular number, fractional let on or a character, as well as and thus on. In the estimator field, information type is a type of information that tin flame survive processed past times a estimator to encounter the needs of estimator programming.

Any variables or constants that be inwards the plan code, nosotros should decide the exact information type. Selection of variable information types or constants volition greatly decide the usage of estimator resources. One of the of import tasks of a programmer is to select the appropriate information type to gain an efficient as well as high-performing program. There are many types of information available, depending on the type of programming linguistic communication used. Broadly speaking information types tin flame survive categorized into 3 kinds of basic information types, Composite information type, as well as abstract information types.

1. Basic Data Type

Basic information types or elementary or mutual information types are too called primitive information types are information types that already be as well as used equally measure inwards a item programming language. The contents of this elementary information type are unmarried data. Basic information types are provided past times plan as well as thus that programmer tin flame straight use.

The next are the Basic information types:
a. Integer
Integers are ..., -3, -2, -1, 0, 1, 2, 3, 4, as well as others that are non fractions.

b. Float atau double
Float or double is a existent let on that contains decimal fractions.

Example:
3.45, 6.777, as well as others

c. Char or character
Char is all the letters inwards the alphabet, punctuation as well as exceptional characters. Characters are written betwixt 2 unmarried quotes.

Example: 'A'

d. Boolean
Boolean is a logical information type consisting of 2 truthful or imitation statements. True statements are commonly written True or numeric, whereas imitation statements are written amongst False or let on 0. Whereas commonly used arithmetics operations are or, non as well as and xor.

2. Composite information type

Composite information type is a information type formed from a basic information type amongst the intent of giving programmers work. Entered inwards the information type of the formation is an array, string, record, union, struct, as well as and thus forth. The purpose of the created information type is:
  • Simplify the procedure of programming
  • Simplify the add-on of variables
  • Simplify the information grouping as well as thus that it's to a greater extent than organized

3. Abstract Data Type

Abstract information type is a mathematical model of information objects that refine the information type past times means of mangaitkannya amongst functions that operate on the information concerned.

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  • Ebook Logical as well as Algorithm

Constants Too Variables Inwards Algorithms

Constants in addition to variables are an identifier used to stand upwards for a for certain value inwards the plan process. In contrast to constants whose value tin non hold upwards altered or e'er stay an excessive hose going on, the value of a variable may alter every bit needed. Constants in addition to variables are places inwards the figurer retention to bring information inwards the shape of values ​​with for certain information types. Constants in addition to variables should hold upwards named every bit identifiers.

Logically you lot tin imagine a constable or a variable every bit an empty box that tin hold upwards filled amongst something of a for certain information type, for representative nosotros practise an integer variable, thus inwards logic nosotros are creating an empty box that tin alone hold upwards filled amongst newspaper inscribed integers, may hold upwards a type other than an integer.

Suppose to practise 2 constants or variables amongst the mention of the value in addition to x identifier each of which tin hold upwards used to shop a value inwards retention inwards accordance amongst the specified information type:




Suppose the value is a variable. Then the value variables that choose been made this selajutnya tin hold upwards used inwards the program, for representative performed arithmetics operations inwards the shape of partitioning or modulo operations.

The picture below shows an illustration of the operations that occur on the value variable. In this instance the value variable is divided past times number 2, in addition to the number of the partitioning performance is stored inwards a novel variable named the quotient. Another arithmetics performance that occurs inwards the figure below is the value variable which module amongst the number 2 in addition to the number stored inwards a novel variabel named sides for. Operation on a constant or variable is non express to arithmetics operations, simply tin every bit good hold upwards a comparing operation. Suppose that the value is greater than the number 10 in addition to others. An representative of using a value variable inwards a unproblematic work is the decision of a number included inwards the strange or fifty-fifty category every bit shown inwards Figure 2



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Referensi :
  • Ebook Logical in addition to Algorithm