def process_three(a, b, c, torun):
    torun(a)
    torun(b)
    torun(c)

def print_thrice(x):
    print(x, x, x)

def half_and_print(x):
    print(x/2)

process_three(2, 3, 4, print_thrice)
process_three(6, 3, 10, half_and_print)
process_three("dog", "fox", "coyote", print_thrice)

def list_results(a, b, c, f):
    return f(a), f(b), f(c)

from math import *
print(list_results(pi, 0, 2*pi, cos))

# This is not a good idea
def run_other(p, f):
    return p, f(p, f)

def safe_function_for_run_other(p, f):
    print("safe_function_for_run_other:  We have paramterers ", p, " and ", f)
    if safe_function_for_run_other == f:
        print("We were passed ourself!")
    return p
run_other(100, safe_function_for_run_other)
# this is the bad idea part
# run_other(100, run_other)

def select_trig_function():
    function = input("Enter a trig function:  ")
    if "sin" in function.lower():
        return sin
    if "cos" in function.lower():
        return cos
    if "tan" in function.lower():
        return tan
    print("Sorry, we don't recognize that!")
    def sorry_function(x):
        print("Sorry, we can't do anything with ", x)
    return sorry_function

def select_run_trig(n):
    trig_function = select_trig_function()
    print("Running on ", n)
    print("Result:  ", trig_function(n))

select_run_trig(pi)
select_run_trig(100)

our_function = lambda x,y : x*y
print(our_function(5, 6))
print( (lambda x,y : x/y)(10, 3))

def make_adder():
    return lambda x,y : x+y

print(make_adder())

print(make_adder()(9, 1200))

trigs = [sin, cos, tan, lambda x : x**30]
for t in trigs:
    print(t(5))

print(trigs[3](9))

#def return_counter(): Doesn't work
#     count = 0
#     def counter():
#         global count
#         count += 1
#         return count
#     return counter
# oc = return_counter()
# print(oc())

def return_counter():
     count = 5
     def counter():
         return count
     return counter
oc = return_counter()
print(oc())