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== 9.3#h(0.6em)Common list operations


  
    
=== Learning objectives


    By the end of this section you should be able to


    - Use built-in functions max(), min(), and sum().
- Demonstrate how to copy a list.


  
  
    
=== Using built-in operations


    The max() function called on a list returns the largest element in the list. The min() function called on a list returns the smallest element in the list. The max() and min() functions work for lists as long as elements within the list are comparable.


    The sum() function called on a list of numbers returns the sum of all elements in the list.


    #examplebox("Example 1")[Common list operations][
"""Common list operations."""

    \# Set up a list of number
    snum\_list = \[28, 92, 17, 3, -5, 999, 1\]

    \# Set up a list of words
    city\_list = \["New York", "Missoula", "Chicago", "Bozeman", 
    "Birmingham", "Austin", "Sacramento"\]

    \# Usage of the max() funtion
    print(max(num\_list))

    \# max() function works for strings as well
    print(max(city\_list))
    
    \# Usage of the min() funtion which also works for strings
    print(min(num\_list))

    print(min(city\_list))

    \# sum() only works for a list of numbers
    print(sum(num\_list))
      The above code's output is:


      
    999
    Sacramento
    -5
    Austin
    1135
]


    #notebox("Note", rgb("#8a94a6"), rgb("#556666"), rgb("#f7f8fa"))[
#emph[List operations]
]


  
  
    
=== Copying a list


    The copy() method is used to create a copy of a list.


    #notebox("Note", rgb("#8a94a6"), rgb("#556666"), rgb("#f7f8fa"))[
#emph[Copying a list]


      #link("https://www.openstax.org/r/copying-list")[Copying a list; ch 9, video 3]
]


    #notebox("Note", rgb("#8a94a6"), rgb("#556666"), rgb("#f7f8fa"))[
#emph[Copying a list]
]


  
  #notebox("Note", rgb("#8a94a6"), rgb("#556666"), rgb("#f7f8fa"))[
#emph[Copy]


    Make a copy of word\_list called wisdom. Sort the list called wisdom. Create a sentence using the words in each list and print those sentences (no need to add periods at the end of the sentences).


    word\_list = \["exercise", "is", "truly", "a", "useful", "coding"\]
]