Preface
Congratulations on purchasing Learning NumPy Array! This was a smart investment, which is guaranteed to save you a lot of time Googling and searching through (online) documentation. You will learn all the essential things needed to become a confident NumPy user. NumPy started originally as part of SciPy and then was singled out as a fundamental library, which other open source Python APIs build on. As such, it is a crucial part of the common Python stack used for numerical and data analysis.
NumPy code is much cleaner than "straight" Python code that tries to accomplish the same task. There are fewer loops required, because operations work directly on arrays and matrices. The many conveniences and mathematical functions make life easier ...
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