Iteration: Difference between revisions
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[[File:computation.png|frame|right|This is a basic concept in computer science]] | [[File:computation.png|frame|right|This is a basic concept in computer science]] | ||
In computer programming, iteration is a sequence of instructions that is continually repeated. You can think of iteration as a loop, but please use the word "iteration" or "iterate". As a computer scientist, we use specialized vocabulary to communicate with other computer scientists. | In computer programming, iteration is a sequence of instructions that is continually repeated. You can think of iteration as a loop, but please use the word "iteration" or "iterate". As a computer scientist, we use specialized vocabulary to communicate with other computer scientists. | ||
There are different types of iterations: | There are different types of iterations: | ||
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Iteration is a fundamental programming idea that is commonly used in writing programs. | Iteration is a fundamental programming idea that is commonly used in writing programs. | ||
== Video | == Video one == | ||
This is one of the better videos I've seen on | This is one of the better videos I've seen on iteration | ||
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</html> | </html> | ||
== | == Video two == | ||
<html> | <html> | ||
<iframe width="560" height="315" src="https://www.youtube.com/embed/l26oaHV7D40" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> | <iframe width="560" height="315" src="https://www.youtube.com/embed/l26oaHV7D40" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> | ||
</html> | </html> | ||
== Example one == | |||
<syntaxhighlight lang="python"> | |||
# This example is in the Python programming language | |||
for i in range (0,100): | |||
print(i) | |||
# output will be: | |||
0 | |||
1 | |||
2 | |||
3 | |||
4 | |||
5 | |||
... | |||
99 | |||
</syntaxhighlight> | |||
== Example two == | |||
<syntaxhighlight lang="python"> | |||
# This example is in the Python programming language | |||
myList = [1,3,5,11,22,33,44,55,66] | |||
for i in myList: | |||
print(i) | |||
# output will be: | |||
1 | |||
3 | |||
5 | |||
11 | |||
22 | |||
33 | |||
44 | |||
55 | |||
66 | |||
</syntaxhighlight> | |||
== Standards == | == Standards == | ||
Latest revision as of 17:10, 17 February 2020
This is a basic concept in computer science
In computer programming, iteration is a sequence of instructions that is continually repeated. You can think of iteration as a loop, but please use the word "iteration" or "iterate". As a computer scientist, we use specialized vocabulary to communicate with other computer scientists.
There are different types of iterations:
- iterate until a certain condition is reached
- iterate a certain number of times
- iterate through elements in a list or array
When we iterate our programming language tracks what step of the iteration is currently being executed. For example: if we are iterating 100 times (from zero to one hundred, incrementing by one each at each step), our programming language will keep track of which iteration we are cycling through.
Iteration is a fundamental programming idea that is commonly used in writing programs.
Video one[edit]
This is one of the better videos I've seen on iteration
Video two[edit]
Example one[edit]
# This example is in the Python programming language
for i in range (0,100):
print(i)
# output will be:
0
1
2
3
4
5
...
99
Example two[edit]
# This example is in the Python programming language
myList = [1,3,5,11,22,33,44,55,66]
for i in myList:
print(i)
# output will be:
1
3
5
11
22
33
44
55
66
Standards[edit]
- Construct algorithms using loops, branching.