iPhoneXS MAX/11Pro iPhoneX/XS/11ProMax iPhoneXR/11 iPhone8/7/6s/6 Plus iPhone8/7/6s/6 iPhone5s/5c/5 iPhone4s/4
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URL：http://www.ge.ce.nihon-u.ac.jp/~higuchi/1stSem/Math1/img/MaximalMinimal.jpg 掲載元：http://www.ge.ce.nihon-u.ac.jp/~higuchi/1stSem/Math1/24.html
