Dit is een uitgewerkte cursus voor het vak bedrijfsinformatica van Prof Alexandre Thys. Er bestaan 2 cursusses. Een voor het theoriegedeelte en één voor het WPO gedeelte (Python). Veel succes verder !!
Contents
1. Input & Input Functions........................................................................................................................................................................... 6
2. Variables, Datatypes & Operators........................................................................................................................................................ 6
2.1 Basic Datatypes for variables......................................................................................................................................................... 6
2.2 Some predefined functions : Built-in functions....................................................................................................................... 6
2.3 Hoe type van een variabele kennen?........................................................................................................................................... 7
2.4 Variable names..................................................................................................................................................................................... 8
2.5 Overschakelen van datatype........................................................................................................................................................... 8
2.6 Some other built-in functions......................................................................................................................................................... 9
2.7 Operators................................................................................................................................................................................................ 9
2.7.1 Arithmetic Operators : + - * / // ** %................................................................................................................................. 9
2.7.2 Assignments Operators : = += -= *= /= //= **= %=.................................................................................................... 10
2.7.3 Comparison Operators : < > <= >= == !=......................................................................................................................... 10
2.7.4 Logical Operators : and or not............................................................................................................................................. 11
2.8 Exercices on Variables & Operators.......................................................................................................................................... 11
Oefening 1 : Comparaison................................................................................................................................................................ 11
Oefening 2 : Quiz.................................................................................................................................................................................. 12
Oefening 3 : Quiz.................................................................................................................................................................................. 12
Oefening 4 : Average Electricity Bill............................................................................................................................................ 12
Oefening 5 : Calculations for a tiler.............................................................................................................................................. 12
Oefening 6 : Assign and Modify Variables................................................................................................................................. 13
Oefening 7 : Sales for the week...................................................................................................................................................... 13
3. Working with strings.............................................................................................................................................................................. 14
3.1 Create a string.................................................................................................................................................................................... 14
3.2 Escape Characters............................................................................................................................................................................ 15
3.3 String Operators: + en *.................................................................................................................................................................. 16
3.4 Length of a string = number of characters............................................................................................................................. 16
3.5 String Functions / Methods.......................................................................................................................................................... 17
# allemaal kleine letters................................................................................................................................................................... 17
# Boolean Vraag : allemaal kleine letters ? -> booleaanse vraag !!!................................................................................ 17
# allemaal hoofdletters..................................................................................................................................................................... 17
# Boolean Vraag : allemaal hoofdletters ?................................................................................................................................. 17
# Enkel eerste letter VAN HET EERSTE WOORD VAN DE ZIN in hoofdletter.............................................................17
# enkel eerste letter VAN ELK WOORD is hoofdletter......................................................................................................... 17
# use functions one after the other.............................................................................................................................................. 18
Fadia Farhat | VUB 2021-20221
, # check if numbers inside a string............................................................................................................................................... 18
# strip methode................................................................................................................................................................................... 18
# string.strip(characters) -> Characters to remove.............................................................................................................. 18
# Strings are indexed -> all characters have an index.......................................................................................................... 20
# Werken met 2 parameters........................................................................................................................................................... 20
# Format methods for strings........................................................................................................................................................ 20
# Join-Method....................................................................................................................................................................................... 21
# Split-Method...................................................................................................................................................................................... 22
# to call a character => put his index into [ ]............................................................................................................................ 22
# Indexing and Slicing....................................................................................................................................................................... 22
# Membership operators => Boolean question...................................................................................................................... 23
3.6 Exercices on Strings......................................................................................................................................................................... 23
Oefening 1 : Write a Server Log Message.................................................................................................................................. 23
Oefening 2 : Concatenation............................................................................................................................................................. 23
4. Working with Booleans......................................................................................................................................................................... 24
5. Working with numbers (float & integer)........................................................................................................................................ 25
5.1 Volgorde van de bewerkingen..................................................................................................................................................... 25
6. Datastructures........................................................................................................................................................................................... 25
6.1 Lists........................................................................................................................................................................................................ 25
6.1.1 Wat is er zo speciaal aan een list ?..................................................................................................................................... 26
6.1.2 Kenmerken lijst......................................................................................................................................................................... 26
6.1.3 Lijst aanmaken.......................................................................................................................................................................... 26
6.1.4 Datatype van een list ?........................................................................................................................................................... 27
6.1.4 Wat kan je doen met een lijst ?........................................................................................................................................... 27
6.1.5 Python Building Blocks for Lists........................................................................................................................................ 27
6.2 Tuple...................................................................................................................................................................................................... 31
6.2.1 Kenmerken van een Tuple.................................................................................................................................................... 31
6.2.2 Tuple aanmaken....................................................................................................................................................................... 31
6.2.3 Access attributes of the tuple.............................................................................................................................................. 32
6.2.4 Python Blocks for tuples....................................................................................................................................................... 32
6.3 Set........................................................................................................................................................................................................... 32
6.3.1 Kenmerken van een Set......................................................................................................................................................... 32
6.3.2 Set aanmaken............................................................................................................................................................................. 33
6.3.3 Python Blocks for Sets............................................................................................................................................................ 33
6.3.4 Sets gebruiken als verzamelingen.......................................................................................................................................... 33
6.4 Dictionary............................................................................................................................................................................................ 34
6.4.1 Dictionary Aanmaken............................................................................................................................................................. 34
6.4.2 Nagaan op welke plaats een “kolom” of de key met zijn waarde staat...............................................................34
Fadia Farhat | VUB 2021-20221
, 6.4.3 Kolom (= element of key met zijn waarde) toevoegen............................................................................................. 34
6.4.4 Nagaan of een keynaam in dictionary bestaat (kolom-naam)............................................................................... 35
6.4.5 Weergeven van alles keys = titels van de kolommen................................................................................................ 35
6.4.6 Weergeven van alle waarden van de dictionary.......................................................................................................... 35
6.4.7 Bepaalde waarde oproepen met zijn key....................................................................................................................... 35
6.4.8 Waarden oproepen met de .get() methode.................................................................................................................... 35
6.4.9 Pop Methode.............................................................................................................................................................................. 35
6.4.10 Weergeven van alle elementen van de dictionary (key met waarde)..............................................................35
6.4.11 Weergeven van de values................................................................................................................................................... 35
6.4.12 Weergeven van de keys....................................................................................................................................................... 36
6.4 Compound Data Structures.......................................................................................................................................................... 36
6.4.1 Dictionary in Dictionary........................................................................................................................................................ 36
6.4.2 Tuple in List................................................................................................................................................................................ 36
6.4.3 Tuple in Dictionary.................................................................................................................................................................. 36
6.5 Summary.............................................................................................................................................................................................. 37
6.7 Excercices............................................................................................................................................................................................ 37
Oefening1 : Quiz................................................................................................................................................................................... 37
Oefening 2 : List Indexing................................................................................................................................................................ 37
Oefening 3 : Slicing Lists................................................................................................................................................................... 38
Oefening 4 : Count, Split & Convert.............................................................................................................................................. 38
Oefening 5 : Data Structures........................................................................................................................................................... 39
Oefening 6 : Sentence Dictionary.................................................................................................................................................. 40
7 Selecties........................................................................................................................................................................................................ 41
7.1 Conditional Statements.................................................................................................................................................................. 41
7.1.1 if...................................................................................................................................................................................................... 41
7.1.2 elif ( if elif)................................................................................................................................................................................... 41
7.1.3 else with elif (if elif else)....................................................................................................................................................... 41
7.1.4 else without elif (if else)........................................................................................................................................................ 42
7.2 Ternary Operators or Conditional Expressions................................................................................................................... 42
7.2.1 Short Hand If.............................................................................................................................................................................. 42
7.2.2 Short Hand If Else..................................................................................................................................................................... 42
7.2.3 And................................................................................................................................................................................................. 42
7.2.4 Or.................................................................................................................................................................................................... 42
7.2.5 Nested If....................................................................................................................................................................................... 42
7.2.6 The Pass Statement................................................................................................................................................................. 43
7.3 Excercises on Conditional Statements..................................................................................................................................... 43
Oefening 1 : Which Prize.................................................................................................................................................................. 43
Oefening 2 : Compare Guess to Result........................................................................................................................................ 43
Fadia Farhat | VUB 2021-20221
, Oefening 3 : VAT.................................................................................................................................................................................. 44
Oefening 4 : improve statements.................................................................................................................................................. 44
Oefening 5 : Fixing Errors................................................................................................................................................................ 44
8 Iteraties (Loops)........................................................................................................................................................................................ 46
8.1 While-Loop.......................................................................................................................................................................................... 46
8.1.1 The While.................................................................................................................................................................................... 46
8.1.2 The else-statement.................................................................................................................................................................. 46
8.1.3 Break............................................................................................................................................................................................. 46
8.1.4 Continue....................................................................................................................................................................................... 47
8.2 For-Loop............................................................................................................................................................................................... 47
8.2.1 For in a range............................................................................................................................................................................. 47
8.2.2 For in a string............................................................................................................................................................................. 48
8.2.3 For in a list.................................................................................................................................................................................. 49
Exercises on Loops.................................................................................................................................................................................. 49
Oefening 1 : Even Getallen............................................................................................................................................................... 49
Oefening 2 : Oneven getallen.......................................................................................................................................................... 49
Oefening 3 : Examples – FOR loop................................................................................................................................................ 49
Oefening 4 : Examples Building dictionaries............................................................................................................................ 50
Oefening 5 : Factorials with While loops................................................................................................................................... 50
Oefening 6 : Factorials with for loops......................................................................................................................................... 51
Oefening 7 : Exercise For Loops – Usernames......................................................................................................................... 51
Oefening 8 : Iterating through Dictionaries - Fruit Basket (Count Method)...............................................................52
Oefening 9 : While Loops - Count by........................................................................................................................................... 53
Oefening 10 : While Loops - Nearest Square............................................................................................................................ 53
9 Procedures and/or Functions.............................................................................................................................................................. 54
9.1 Predefined functions....................................................................................................................................................................... 54
9.2 Self-defined functions..................................................................................................................................................................... 54
# Functions performing a task or procedure........................................................................................................................... 54
# Functions with an output value................................................................................................................................................. 54
# Writing documentation................................................................................................................................................................ 55
# Make an argument optional........................................................................................................................................................ 55
# Using None as a default argument............................................................................................................................................ 55
9.3 Exercices on Functions................................................................................................................................................................... 56
Oefening 1 : Function: population_density............................................................................................................................... 56
Oefening 2 : Function: readable_timedelta............................................................................................................................... 56
Oefening 3 : Function: divisible by 9........................................................................................................................................... 57
Oefening 4 : Football.......................................................................................................................................................................... 58
10 Reading & Writing files........................................................................................................................................................................ 59
Fadia Farhat | VUB 2021-20221
Voordelen van het kopen van samenvattingen bij Stuvia op een rij:
√ Verzekerd van kwaliteit door reviews
Stuvia-klanten hebben meer dan 700.000 samenvattingen beoordeeld. Zo weet je zeker dat je de beste documenten koopt!
Snel en makkelijk kopen
Je betaalt supersnel en eenmalig met iDeal, Bancontact of creditcard voor de samenvatting. Zonder lidmaatschap.
Focus op de essentie
Samenvattingen worden geschreven voor en door anderen. Daarom zijn de samenvattingen altijd betrouwbaar en actueel. Zo kom je snel tot de kern!
Veelgestelde vragen
Wat krijg ik als ik dit document koop?
Je krijgt een PDF, die direct beschikbaar is na je aankoop. Het gekochte document is altijd, overal en oneindig toegankelijk via je profiel.
Tevredenheidsgarantie: hoe werkt dat?
Onze tevredenheidsgarantie zorgt ervoor dat je altijd een studiedocument vindt dat goed bij je past. Je vult een formulier in en onze klantenservice regelt de rest.
Van wie koop ik deze samenvatting?
Stuvia is een marktplaats, je koop dit document dus niet van ons, maar van verkoper fadia. Stuvia faciliteert de betaling aan de verkoper.
Zit ik meteen vast aan een abonnement?
Nee, je koopt alleen deze samenvatting voor €15,49. Je zit daarna nergens aan vast.
