IA 20211027

#intro_numpy
import numpy as np

a1 = np.array([1,2,3])
print (a1)
print (type(a1)) #numpy.ndarray

a2 = np.array([
    [1,2,3],
    [4,5,6],
    [7,8,9]
])
print (a2)
print (type(a2)) #numpy.darray

progArit3 = np.arange(
    1, #min
    50+1,#max, exclusive
    3 #step
)
print(progArit3)

#floats
linSpace12 = np.linspace(
    1, #min
    50, #max
    120 #how many elements
)
print (linSpace12)

#powers of 10
logSpace1 = np.logspace(
    2,#start-exponent (start @ base^2)
    16,#end-exponent (end base^5)
    num=50, #size of col
    base=2
)
print (logSpace1)

print (np.var(linSpace12))