text: x = [0.0, 3.0, 5.0, 2.5, 3.7]  #this has defined an array
  print(type(x))      #what does this print out? ----> 'list'
  
  print("Originally x = ", x)
  
  #removing the third element
  x.pop(2)
  print("The new side of x = ", x)
  
  #removing the element equal to 2.6
  x.remove(2.5)
  print(x)
  
  #add an element to the end of the array
  x.append(1.2)
  print(x)
  
  #you can make a copy of the array
  y =x.copy()
  print(y)
  
  #finding the count of a specific variable in the array
  print(y.count(0.0))
  
  #print the index with the value of 3.7  --->   the location
  print(y.index(3.7))
  
  #sorting the list
  y.sort()        #sorts in values lowest to highest
  print(y)
  
  #reversing the sort of the list
  y.reverse()
  print(y)
  
  #removing all elements)
  y.clear()
  print(y)
  
  #adding a variable to a specific location
  x[0] = 5.9
  print(x)