u3: algorithms and programming

loops

traverse through lists/arrays/strings

data types

integers, strings, lists and booleans

List (array)

an ordered sequence of element

strings

ordered list of characters. (substrings are part of a string)

string concatenation

occurs when two strings or more are connected w/ a “+”

algorithm

instructions that accomplish a task or solve a problem (all algorithms are created using sequencing, selection, and iteration)

sequencing

all of the code is executed in the order they are written in

selection

statements are processed through if statements that all have conditions that need to be met for the selection to run (Else statements are attached to if statements which specify what happens if a condition is not met)

iteration

code repeats until condition is met

expression

statement that only returns one value. (Evaluated with PEMDAS)

MOD (%)

gives you the remainder of two numbers

nested conditional statements have…

conditional statements inside of conditional statements

procedures

programming instructions that are also called methods or functions

parameters

input variables of a procedure

arguments

a call with defined values + attributes

logical operators

NOT, AND and OR

element

an individual value in a list & all elements have an index