def Richter(r):
    """
    Assignment Python HW, pt. 1: Ritcher
    Andrew Noah Woodlee
    ENG 101-06
    Due Date: 11-10-19

    *******
    """
    E=[]
    T=[]
    j=0
    print('Richter measurement \t Energy in Joules \t TNT')
    for i in r:
        E.append(10**((1.5*i)+4.8)) #Calculates energy in Joules
        T.append(E[j]*4.184*10**9) #Calculates tons of TNT
        print('%-20f \t %-20e \t %-20e' %(i,E[j],T[j]))
        j+=1
    return E,T

def RPSGame():
  import random as ran
  w=['r','p','s']
  cpu=ran.choice(w)
  Cwin=0
  Uwin=0
  Draw=0
  #s=input('Please choose a wepon (r, p, or s) or q to quit. The game has begun; prepare to face your doom: ').lower()
  while Cwin<3 and Uwin<3:
    s=input('Please choose a wepon (r, p, or s) or q to quit. The game has begun; prepare to face your doom: ').lower()
    if s=='q':
      print("Goodbye")
      return
    elif (s=='s' and cpu=='r') or (s=='s' and cpu=='p') or (s=='p' and cpu=='s'):
      print("I win!")
      Cwin+=1
    elif (s=='r' and cpu=='s') or (s=='p' and cpu=='s') or (s=='s' and cpu=='p'):
      print("You win.")
      Uwin+=1
    elif s==cpu:
      print("Tie")
      Draw+=1
  print("Wins:",Uwin)
  print("Draws: ",Draw)
  print("Losses: ",Cwin) 



def num_roman(num):
  """
  Python Homework 1, pt. 3
  Andrew Noah Woodlee
  ENG 101-06
  Due date: 11-12-19
  nun_roman(x)
  Input:
  num should be a scalar between 1-3999
  Output:
  rn is a Roman numeral string
  """
  rn=''
  if num=='':
    rn+='MMXIX'
  elif isinstance(num, list):
    print("num must be a scalar!")
    return
  elif num<1:
    print('Please enter a positive number!')
    return
  elif num>3999:
    print("num can not be greater than 3999!")
    return
  else:
    num==int(num)
  while num>=1000:
      num-=1000
      rn+="M"
  if num>=900:
      num-=900
      rn+="CM"
  if num>=500:
      num-=500
      rn+="D"
  if num>=400:
      num-=400
      rn+="CD"
  while num>=100:
      num-=100
      rn+="C"
  if num>=90:
      num-=90
      rn+="XC"
  if num>=50:
      num-=50
      rn+="L"
  if num>=40:
      num-=40
      rn+="XL"
  while x>=10:
      x-=10
      rn+="X"
  if num>=9:
      num-=9
      rn+="IX"
  if num>=5:
      num-=5
      rn="V"
  if num>=4:
      num-=4
      rn+="IV"
  while num>=1:
      num-=1
      rn+="I"
  return rn

def Epieces(x,y):
  """
  Python HW1, pt. 4: Epieces
  Andrew Noah Woodlee
  ENG 101-06
  Due Date: 11/12/19
  Epieces(x,y)
  Input:
  x and y are arrays of equal length
  Output:
  The first output is an array of various calculations on the first array
  The second is the average of the output array
  The third output is the index number of the x input minimum
  """
  import math as m
  import statistics as stats
  if len(x)!=len(y):
    print("Arrays must be equal in length.")
  n=len(x)
  a=[]
  for i in range(0,n):
    if y[i]=='A':
        a.append(m.degrees(m.atan(x[i])))
    if y[i]=='B':
        a.append(m.sqrt(1+x[i]**2))
    if y[i]=='C':
        a.append(m.factorial(m.ceil(x[i])))
    if y[i]=='D':
        a.append(m.log2(x[i]))
    if y[i]!='A' or y[i]!='B' or y[i]!='C' or y[i]!='D':
        a.append(2*i)
  b=stats.mean(a)
  c=x.index(min(x))
  print("a = ",a)
  print("b = ",b)
  print("c = ",c)