<jupyter_start><jupyter_text>NumPy Operations  Arithmetic<jupyter_code>import numpy as np
arr = np.arange(0,11)
arr
arr + arr
arr * arr
arr - arr
#Warning on division by zero, but not an error!
#Just replaced with nan
arr/arr
#Also warning, but not an error instead infinity
1/arr
arr*3<jupyter_output><empty_output>
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