import numpy
a = numpy.array([0, 1, 2, 3, 4, 5])
print(a[0], a[5])
l = list(a)
print(l)

a = numpy.array([[0, 1, 2], [3, 4, 5]])
print(a[1][2], a[1, 2]) # both access patterns are okay for arrays.
print(a[1])
print(a[1][:])
print(a[1][0:3])
print(a[::-1])
a[0][1] = 9
print(a)

e = numpy.empty(5)
z = numpy.zeros(10)
o = numpy.ones(20, dtype='int64')
r = numpy.arange(8)
linspace = numpy.linspace(0, 5, num=8)
print(e, z, o, r, linspace, sep='\n')

#Classwork: From your previous program, extract all Lab dates.