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#acl AdminGroup:read,write,delete,revert,admin TadashiIijima:read,write,delete,revert,admin IijimaStaffGroup: IijimaGroup: IijimaObogGroup: GuestGroup: Known: All: #acl AdminGroup:read,write,delete,revert,admin TadashiIijima:read,write,delete,revert,admin IijimaStaffGroup: IijimaGroup: IijimaObogGroup: GuestGroup: Known: All:read
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 * この例題のポイント:  * この例題のポイント: [[https://docs.python.jp/3/library/math.html|mathモジュール]]の[[https://docs.python.jp/3/library/math.html#math.gcd|gcd()]]関数
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 ||例題(9) ||[[Python/Prog/Example/02/Ex_009a|]]|| ||  ||<|3>例題(9)||<|3> 【組込関数】||<|1>[[https://ja.wikipedia.org/wiki/最大公約数|最大公約数]] gcd (greatest common divisor)||
 ||<|1> [[https://docs.python.jp/3/library/math.html|mathモジュール]]の[[https://docs.python.jp/3/library/math.html#math.gcd|gcd()]]関数を利用する||
 ||<|1> [[Python/Prog/Example/02/Ex_009a|Ex_02_009a_greatest_common_divisor_builtin.py]]||
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import math
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print( math.gcd( 350, 450 ) )
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# ==============================================================================
# * Copyright (c) 2018 IIJIMA, Tadashi
# * (IIJIMA Laboratory, Dept. of Science and Technology, Keio University).
# ==============================================================================
# ソフトウェア工学[02] 例題[02]-(009a) Ex_02_009a_greatest_common_divisor_builtin.py
# Ex(Example) 02-009a: 【組込関数】 最大公約数 gcd （　greatest common divisor　)の使い方.
# Python 3.3から導入された.
# 2018-10-03 飯島 正 (iijima@ae.keio.ac.jp)
# ==============================================================================
# ----- 数学関数を扱うためのmathモジュールをインポートする -----
import math
# ==============================================================================
# ===== 【メイン・プログラム】　 =====
print( math.gcd( 350, 450 ) )
# ==============================================================================

例題(9)

   1 import math
   2 
   3 print( math.gcd( 350, 450 ) )
  • 例題ファイルとしては，コメントを付け加えた，下記を配布します．
    • コメントはもう少し増えるかもしれません． 

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3 # ==============================================================================
   4 # * Copyright (c) 2018 IIJIMA, Tadashi
   5 # *       (IIJIMA Laboratory, Dept. of Science and Technology, Keio University).
   6 # ==============================================================================
   7 # ソフトウェア工学[02] 例題[02]-(009a)  Ex_02_009a_greatest_common_divisor_builtin.py
   8 # Ex(Example) 02-009a: 【組込関数】 最大公約数 gcd （　greatest common divisor　)の使い方. 
   9 #                               Python 3.3から導入された.
  10 #        2018-10-03 飯島 正 (iijima@ae.keio.ac.jp)
  11 # ==============================================================================
  12 # ----- 数学関数を扱うためのmathモジュールをインポートする -----
  13 import math
  14 # ==============================================================================
  15 # ===== 【メイン・プログラム】　 =====
  16 print( math.gcd( 350, 450 ) )
  17 # ==============================================================================

SoftEng: Python/Prog/Example/02/Ex_009a (last edited 2018-10-28 12:38:24 by TadashiIijima)