add .md file/entry for Pandas dataframe tail

content/pandas/concepts/dataframe/terms/tail.md

@@ -0,0 +1,50 @@
+---
+Title: '.copy()'
+Description: 'Returns the last n rows of a DataFrame.'
+Subjects:
+  - 'Computer Science'
+  - 'Data Science'
+  - 'Web Development'
+Tags:
+  - 'Data Structures'
+  - 'Pandas'
+CatalogContent:
+  - 'learn-python-3'
+  - 'paths/data-science'
+---
+
+In Pandas, **`.tail()`** is a method that returns the last n rows of a DataFrame. By default, it returns the last 5 rows, but the number of rows can be adjusted by passing an integer argument to the method.
+
+## Syntax
+
+```pseudo
+df_tail = df.tail(n=5)
+```
+
+The parameter `n` specifies the number of rows to return. The default value is `n=5`.
+
+## Example
+
+```py
+import pandas as pd
+
+# Create a DataFrame
+df = pd.DataFrame({'A': [1, 2, 3, 4, 5, 6], 'B': [7, 8, 9, 10, 11, 12]})
+
+# View the last 3 rows of the DataFrame
+last_three_rows = df.tail(3)
+
+# Print the last 3 rows
+print(last_three_rows)
+```
+
+The output of the code above will be:
+
+```shell
+   A   B
+3  4  10
+4  5  11
+5  6  12
+```
+
+By using the `.tail()` method, the end of a DataFrame can be previewed, which can be useful for inspecting the most recent data in a dataset.