#functions.py
#demo some functions

#print() here takes one string argument.  Returns None.
print("hello world")

#input() takes a string argument. Returns a string.
s = input("Enter stuff: ")
print(s)

#len() takes a string [or list] argument. Returns an int
length_s = len(s)
print(length_s)

#min() takes any number of arguments, either all numeric or all string, [or a list]
min_int = min(34,56,23,67,12,456,24)
print(min_int)

min_string = min("asdf","qwerty","tyurtyu","aavcdf","hello")  #asciibetical min
print(min_string)


#type() takes any argument, returns its type. Here for learning purposes.
print(type(1234))
print(type(1234.56))
print(type("asdfasdf"))

a = 1234
b = 1234.56
c = "asdfasdf"
print(type(a))
print(type(b))
print(type(c))


#quit() terminates the program. Choose Cancel else Shell terminates too.
ans = input("Do you want to quit? (y or n): ")
if ans.upper() == 'Y':
    quit()

# type conversion functions
#int() takes an int-looking string argument, returns an int of it
i = int("1234")
print(type(i), i)
#int() can take a float argument and return the truncated integer part of it
print(int(3.99))
#round() will round a float argument up or down
print(round(3.5))
print(round(3.49))

#float() takes a float-looking string argument, returns a float of it
f = float("1234.45")
print(type(f), f)

#str() takes a number argument, returns a string of it
s1 = str(1234)
print(type(s1),s1)
x = 456.56
print("Your number is " + str(x))

import math
#math.sqrt() takes a number argument, returns a float
print(math.sqrt(25))
print(math.sqrt(2))
print(math.sqrt(math.pi))


import random
#random.random() takes no argument, returns a random float between 0 and 1
print(random.random())
print(random.random())
print(random.random()*100)  # [0,100)
print(random.random()*100)