Math Adventures with Python
An Illustrated Guide to Exploring Math with Code
楽天ブックス(Kobo)
紀伊国屋書店(Kinoppy)
開発環境
- macOS Mojave - Apple (OS)
- Emacs (Text Editor)
- Windows 10 Pro (OS)
- Visual Studio Code (Text Editor)
- Python 3.7 (プログラミング言語)
- Processing 3 (プログラミング言語、統合開発環境、グラフィック機能)
Math Adventures with Python: An Illustrated Guide to Exploring Math with Code (Peter Farrell(著)、No Starch Press)のPART 2(RIDING INTO MATH TERRITORY)、8(USING MATRICES FOR COMPUTER GRAPHICS AND SYSTEMS OF EQUATIONS)、EXERCISE 8-1(MORE TRANSFORMATION MATRICES)の解答を求めてみる。
コード
Python 3
#!/usr/bin/env python3 def average(*nums) -> float: return sum(nums) / len(nums) def square_root(num, low, high, epsilon=0.01): guess = average(low, high) square = guess ** 2 while abs(square - num) >= epsilon: if square < num: low = guess else: high = guess guess = average(low, high) square = guess ** 2 return guess nums = [200, 1000, 50000] for num in nums: print(f'{num}: 約{square_root(num, 1, num)}') for epsilon in [0.1, 0.01, 0.001]: print(f'誤差: {epsilon}') for num in nums: print(f'{num}: 約{square_root(num, 1, num, epsilon)}')
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