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One Dimensional Array

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Date created

Mar 1, 2020

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Section 1

(32 cards)

One Dimensional Array

Front

An array (Python list) where the data elements are organised in a row. eg. [8,7,4,3,1]

Back

Integer

Front

Data Type: a whole number Eg 1, 2, 3 etc

Back

Post-test loop

Front

The condition being tested is evaluated at the end of the loop

Back

Termination of condition

Front

there must be a statement inside the repeating section of codes hat allows the condition to become false

Back

Repetition structure

Front

defines the boundaries containing the repeating section of code and also controls whether the code will be executed or not

Back

Selection

Front

A condition determines whether code will be executed (Eg. IF or Case Select)

Back

String

Front

Data Type: used to represent text, a collection of characters (can include a mixture of letters & numbers) Eg 'fred', '123xyz'

Back

Data Type

Front

How data is stored in computers. Tells the computer how the data will be used. Eg. string, integer etc.

Back

Array

Front

A data structure where all of the data is stored and defined under one variable name. In Python, we call this a 'list' eg. x = [4,6,3,9]

Back

Procedure

Front

A sub-program that carries out a list of instructions. Different from a function, in that it does not return a value.

Back

Sequence

Front

Code will be executed in order.

Back

Real (or float)

Front

Data Type: numbers that have a decimal part Eg 3.14, 5.2, 100.0 etc

Back

Loop: Repeat

Front

A kind of iteration. In Python a repeat loop is created using the 'For' command eg: For i in range(1,6): will execute an instruction 5 times

Back

Condition

Front

Each repetition structure requires a condition that must be evaluated

Back

fixed-count loop

Front

A fixed number of iterations are executed

Back

Constant

Front

A value that cannot be altered during the running of the program.

Back

Iteration

Front

Code that is repeated. Eg. a loop (While, Do While, For)

Back

Loop: While

Front

The loop starts by checking that the WHILE condition is TRUE and will execute until it is FALSE. A WHILE loop may not execute. Eg. total = 1 WHILE total < 10 total = total+1

Back

Loop: Do While

Front

The loop starts at DO and repeats until the condition is FALSE. A DO loop always executes. DO value=value+1 WHILE value < 10

Back

Boolean: AND

Front

Both conditions must be true in order for the condition to apply eg: IF x==5 AND y==6: print ('launch')

Back

Character

Front

Data Type: a single letter or symbol Eg. 'A', '5', '%' etc.

Back

Boolean: OR

Front

A Boolean operator where equivalence to either condition results in TRUE Eg. IF x==5 OR x==6: print (x)

Back

Two Dimensional Array

Front

A two-dimensional array is similar to a one-dimensional array, but it can be visualised as a grid (or table) with rows and columns.

Back

Casting

Front

The process of changing from one data type to another

Back

Boolean: NOT

Front

A Boolean operator used to compare one condition to another and return a value of TRUE or FALSE. Eg. IF NOT >=15: print ('Entrance Denied')

Back

Function

Front

A sub program that takes parameters and RETURNS a value.

Back

Switch Case

Front

A type of selection statement (an alternative to IF)

Back

Variable

Front

A location in memory whose value may change during the running of the program.

Back

Boolean

Front

Data Type: can only take one of two values, usually TRUE or FALSE (can be yes/no)

Back

Initialization of condition

Front

ensures correct loop execution the firtst time the condition is evaluated

Back

Pseudocode

Front

A set of instructions in the style of a programming language, but using plain English.

Back

In a pretest loop, the continuation condition is tested at the ____ through the loop.

Front

Beginning

Back