<jupyter_start><jupyter_text>Using Boolean Arrays<jupyter_code>import numpy as np
np.random.seed(1)
ar = np.random.randint(100, size=10)
ar
ar_isodd = ar % 2 == 1
ar_isodd
ar[ar_isodd]
ar[ar % 2 == 1]<jupyter_output><empty_output>
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