Mini-Tutorial Python

a = 23
b = -23

def abs(num):
    if num < 0:
        num = -num
    return num

if abs(a) == abs(b):
    print "The absolute values of", a,"and",b,"are equal"
else:
    print "The absolute values of a and b are different"
      

The absolute values of 23 and -23 are equal
      

def hello():
    print "Hello"

def area(width,height):
    return width*height

def print_welcome(name):
    print "Welcome",name
    
hello()
hello()

print_welcome("Fred")
w = 4
h = 5
print "width =",w,"height =",h,"area =",area(w,h)
      

Hello
Hello
Welcome Fred
width = 4 height = 5 area = 20