Arithmetic operations (+, -, /, *, and so on) can be applied either to a
Series or between two
Series objects. When applied to a single Series, the operation is applied to all of the values in that
Series. The following code demonstrates arithmetic operations applied to a
Series object by multiplying the values in
2. The result is a new
Series with the new values (
s3 is unchanged).
In : # multiply all values in s3 by 2 s3 * 2 Out: a 2 b 4 c 6 dtype: int64
The preceding code is also roughly equivalent to the following code, which creates a new series from a scalar value using the index from
s3. It has the same result, but it is not as efficient, as alignment is performed between the Series objects instead ...