#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Felix Muzny
9/13/2022
DS 2000
Lecture 2 - print, input, type casting, round

Logistics:
    - Your first due dates will be on Friday (9/16)!
    - Quiz 1 (will be released today @ 4:30pm, due Friday @ 9:50 AM)
    - Homework 1 (due Friday @ 9pm)
"""


"""
Warm-up
---

Question: What is the value of the variable "x" at the end of the following
lines of code?

x = 10
x = 10 * 2
x = x + 10
print(x)

A. 10
B. 20
C. 30
D. 40
E. Error
"""

"""
Warm-up
---
(Deitel & Deitel 2.3)

Question: What does the ** operator do?


"""

"""
review: python "commands"
----

Last lecture: we learned about using the print() 
command to display information to the user. print() is 
actually a kind of python *function*.

function: a pre-packaged group code that does one job
for you. python provides a number of very useful functions.

syntax: in python, functions *always* are used by writing
the function name and then a set of parentheses ()

In general, to use a function, you need to know three things:
    
    1. Does this function give me any information back?
    2. what is this function's name?
    3. what information does this function need to run?

For print():
    
    1. Does this function give me any information back?
    2. what is this function's name?
    3. what information does this function need to run?
    
    
Vocabulary:
    - function
    - arguments/parameters
"""


"""
Getting fancy with print()
----
(Deitel & Deitel 2.4)

To print multiple pieces of information on the same line,
we can pass multiple parameters to the print() function.
"""

# print() examples


"""
input()
----
(Deitel & Deitel 2.6)

input() is a python *function*. Its job is to get information
from the user.

Let's answer the three function questions first:
    
    1. Does this function give me any information back?
    2. what is this function's name?
    3. what information does this function need to run?
    
Vocabulary:
    - return/return value
"""

# input() examples


"""
Question: What is the data type of "answer" after the following
lines of code?


A. 
"""

"""
data types
----

all *values* in python have a *data type*

string:
    
int:
    
float:
    
    
There are others, but these are the ones that we'll focus on
for now!
"""


"""
type conversion
----

string, int, and float all have special python functions that 
convert values of a different type into the target type.

For example, we have an int() function:
    
    1. Does this function give me any information back?
    2. what is this function's name?
    3. what information does this function need to run?
"""

# int() examples

# str() examples


# w/o return examples/questions


"""
input() + types
---

"""



"""
Example problems from last Friday!
"""

"""
Example problem 1:

Write a program that asks the user how old they are, then 
prints this number out.
"""
age = 31
print("Your age:")
print(age)


"""
Example problem 2:

Write a program that asks the user how many apples they would 
like to eat each day, then calculates how many apples they should
buy per week.
"""
apples_per_day = 3
apples_per_week = apples_per_day * 7
print("you should buy:")
print(apples_per_week)


"""
round()
---
"""


"""
Summary (very brief)
---
Functions to be familiar with:
    - print()
    - input()
    - int()
    - float()
    - str()
    - round()
    
We also learned some more vocabulary:
    - function
    - parameter/argument
    - return/return value
"""