numerical.py

import numpy as np
a = np.array([1,2,3])
print(a)
a = np.array([[1,2],[3,4]])
print(a)
a.shape
a.size
a.reshape(4,1)
a.reshape(1,4)
a = np.arange(24)
print(a)
a.shape
a.reshape(24,1)
a.reshape(1,24)
a.reshape(4,6)
print(a.reshape(3,2,4))
a.ndim
a.reshape(3,2,4).ndim
a = np.zeroes([3,2])
print(a)
a = np.zeroes([3,2],dtype=int)
print(a)
a = np.zeroes([3,2],dtype=complex)
print(a)
a = np.ones([3,2],dtype=int)
print(a)
a = np.eye(5)
a=np.full([3,2],7)
print(a)
a = np.random.randint(4)
print(a)
a = np.array([[1,2],[3,4]])
b = np.empty_like(a)
print(b)
a = [1,2,3,4,5,6,7,8,9,10]
b = np.delete(a,[2,4,6]) #deletes the indexed value
print(b)
a = np.array([[1,2,3],[4,5,6],[7,8,9]])
len(a)
b = np.delete(a,[1])
print(b)
b = np.delete(a,[1],axis=0)
print(b)
b = np.delete(a,[1],axis=1)
print(b)