#built in functions

1. type(x)
2. max('HELLO world'
3. min('Hello world')
4. len('Hello world')
5. int(x)
6. flaot(x)
7. str(32)
8. import math # to use math functions
9. print(math)
10. math.log10(x)
11. math.sin(x)
12. math.pi
13. >>> degrees = 45
    >>> radians = degrees / 360.0 * 2 * math.pi   #sine takes the value in radians
    >>> math.sin(radians) 0.7071067811865476
14. math.sqrt(x)
15. import random
    x = random.random()  # gives number between 0.0 and 1.0
16. random.randint(5, 10) # returns number 5/6/7/8/9/10
17. t = [1, 2, 3]
    random.choice(t) # random numbers from sequence
18. math.pow(5, 2) # answer 25
