1. ./function_example.py
2. ./module_example_from_import.py
3. ./module_example_import.py
4. ./print_examples.py
5. ./sum5.py
6. ./sum_nums.py

# Examples using built-in functions
# Sara Sprenkle

#x = 6.817454321
x = 5.60123

print("We start with x having value", x)

# Call the function round with input x
# and save the output of function call in variable roundedXInt
roundedXInt = round(x)
print("x rounded to the nearest int:", roundedXInt)

roundedXTenth = round(x, 1)
print("x rounded to the nearest tenth:", roundedXTenth)

a = round(x, 2)
print("x rounded to the nearest hundredth:", a)
# demonstrating that the variable name doesn't matter,
# but good names make the code easier to understand

roundx = round(x, 3)
print("x rounded to the nearest thousandth:", roundx)

print(round(x, 4)) # not saving returned value in a variable

print("-"*40)
print("x is of", type(x))

# Example of importing a module, using the from version of import
# by Sara Sprenkle

# With the from import, you don't need to prepend the names
from math import *

i = 1j

# The equation e^(i pi) + 1 = 0

# with import math statement
# shouldbezero =  math.e ** (i * math.pi) + 1

shouldbezero =  e ** (i * pi) + 1

print("e^(i pi) + 1 equals", shouldbezero)

# practice using functions from modules
print("100^(1/2) =", sqrt(100))

# Example of importing a module
# by Sara Sprenkle

# Need to prepend all constants and functions with math.
import math

i = 1j

# The equation e^(i pi) + 1 = 0

# with from math import * statement
# shouldbezero =  e ** (i * pi) + 1

shouldbezero =  math.e ** (i * math.pi) + 1

print("e^(i pi) + 1 equals", shouldbezero)

# practice using functions from modules
print("100^(1/2) =", math.sqrt(100))

# Examples calling the print function
# Sara Sprenkle for CSCI111

print("Hi", "there", "class", sep='; ')
# By default end is "\n" --> called "the new line character"
# means, put the next displayed text on the next line.
print("Put on same", end='') # make end the empty string
print("line")

# make end a space instead:
print("Put on same", end=' ')
print("line")

something = 7

print("The result is ", something, ".", sep = "")

# Adding up 5 numbers from the user
# By CSCI111

# defines a constant for the number of numbers to add up
NUMBER_OF_INPUTS=5

print("This program adds up", NUMBER_OF_INPUTS, "numbers given by you, the user!")
print()

# initialize the accumulator variable
total = 0

#how many times is that getting repeated? 5 times
for i in range(NUMBER_OF_INPUTS):
    # what is getting repeated? That goes in the loop body
    # get input from the user
    userNumber = float(input("Enter your number: "))
    # add the user's number to the accumulator
    total = total + userNumber

# display the results
print("Your total is", total)

# Adding up numbers from the user, where
# users says how many numbers to add up
# By CSCI111

# initialize the accumulator variable
total = 0

# request that user says how many numbers they want to add up.
# (originally, we just had the user enter 5 numbers.)
numNums = int(input("How many numbers do you want to add up? "))


# loop until we're done
for i in range(numNums):
	number = int(input("What number do you want to add? "))
	# update the accumulator
	total = total + number
	# not needed but helpful in watching our program run
	print("Total so far is...", i,  total)
	
# display the results
print("Your total is", total)