(1) Functions

f(x) = x*x
0 or more inputs; exactly zero or one output; can have side effects
definition and call/use

(2) While-loop

(3) Bulls and Cows  (P3)

(4) Objects and Classes

(5) Date Class (P5)


COMPUTER SCIENCE is a misnomer; There is a lot of artistic ....

boolean expression: 

found = False
index = 7
xs = [1,2,3,4,5,6,7,8,9,10]

not found and index < len(xs)
not found = True
len(xs) = 10
index = 7
index < len(xs) = True
True and True = True

found = False
index = 17
xs = [1,2,3,4,5,6,7,8,9,10]

not found and index < len(xs)
not found = True
len(xs) = 10
index = 17
index < len(xs) = False
True and False = False


BOTTOM UP PROBLEM SOLVING

TOP DOWN PROBLEM SOLVING

UP-DOWN PROBLEM SOLVING


TUPLE is a list that cannot be modified

Python Strings cannot be modified; immutability
Python List is mutable


s1 = { name = "Raj", courses = [('7003',1.5,'A'), ......]}

s2 = { name = "Tony", courses = [(),(),()]}


d1 = Date(7,15,2021)

d2 = Date(7,16,2021)

d1.leap_year()


d3 = d1.tomorrow()