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# Import some libraries
import numpy as np
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np.arange(7)
Out[2]:
Some equations: $\int \left(f(a)^3 + \sum_{i=0}^{5} a^{i}\right) da$
In [3]:
a = 'abc'
b = 'def'
print(a + b * 2)
print(a * 2)
In [4]:
print(np.exp(5))
print('aa')
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