1.2 Algorithms

1.2 Algorithms

algorithm

 a finite set of instructions that accomplish a specific task

sequencing

executes statements one at a time - in order, one after another

selection

 uses "if...then" to tell a computer how to select a step or to tell the sequence that it should be executed

iteration

repetition - one complete step of a loop, repeated until a certain condition is met. 

Multiple Choice

Most algorithms are composed of a combination of:

• sequencing, selection, and iteration

• sequencing, selection, and indexing

• series, selection, and iteration.

Multiple Choice

executes statements one at a time - in order, one after another.

• iteration

• selection

• sequencing

Multiple Choice

one complete step of a loop, repeated until a certain condition is met

• iteration

• selection

• sequencing

Format:

 Each individual step is written on its own line, helping to make it visually clear each step is separate and unique from the other steps.

imperative statement

 a command statement with a verb phrase that indicates an operation to perform (example: move forward)

descriptive qualifier

a specific adverb or adjective that further qualifies or limits the meaning of a word (example: left shoe)

Multiple Choice

A command statement with a verb phrase that indicates an operation to perform

• descriptive qualifier

• imperative statement

• sequencing

Multiple Choice

A specific adverb or adjective that further qualifies or limits the meaning of a word

• descriptive qualifier

• imperative statement

• format

Open Ended

Why are algorithms important?