InfoWorld

What is NumPy? Faster array and matrix math in Python

Python is convenient and flexible, yet notably slower than other languages for raw computational speed. The Python ecosystem has compensated with tools that make crunching numbers at scale in Python ...
CodeZine（コードジン）

NumPyで使われる多次元配列のデータ構造「ndarray」とは？

Developers Summit 2026・Dev x PM Day 講演資料まとめ Developers Boost 2025 講演資料まとめ Developers X Summit 2025 講演資料まとめ Developers Summit 2025 FUKUOKA 講演関連資料まとめ Developers Summit 2025 KANSAI 講演関連資料まとめ ...
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PyTorch深層学習③テンソル：NumPy編

前回はテンソルの概念を解説しました。今回は、NumPyを使ってテンソルの計算を実践しましょう。 しかし、こう思われるかもしれません。「PyTorchの話なのだから、PyTorchのTensor（テンソル）を学ぶべきでは？」 PyTorchのTensorは確かに重要なのですが、NumPyを ...
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[Python]numpyで多次元配列を平坦化(一次元化)する方法をごく簡単に整理

ビューは「一方のオブジェクト」が変更されるともう一方のオブジェクトも変更されます。 import numpy as np z = np.array([[1, 2, 3 ...
InfoWorld

Use Cython to accelerate array iteration in NumPy

NumPy is known for being fast, but could it go even faster? Here’s how to use Cython to accelerate array iterations in NumPy. NumPy gives Python users a wickedly fast library for working with data in ...
Hacker

NumPy Tutorial: Array Computing in Python

NumPy is, just like SciPy, Scikit-Learn, Pandas, etc. one of the packages that you just can’t miss when you’re learning data science, mainly because this library provides you with an array data ...
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Why NumPy is the Foundation of Python Data Analysis

You may have heard about NumPy and wondered why it seems so essential to data analysis in Python. What makes NumPy seemingly end up everywhere in statistical calculations with Python? Here are some ...