NUMPY
Lists Recap
- Powerful
- Collection of values
- Hold different types
- Change, add, remove
- Need for Data Science
Why do we NEED it in DS?
- Mathematical operations over collections
- Speed
Alternative to Python List
NUMPY ARRAY
CALCULATION
over entire arrays
Numpy arrays contain only one type
import numpy as np a = np.array([1, 2, 3], dtype = complex)
print (a)
[ 1.+0.j, 2.+0.j, 3.+0.j]
INSTALLATION
In the TERMINAL:
command: pip3 install numpy
M
By Andy Xu
