NumPy Array: руководство для начинающих

–°–ø–∏—Å–æ–∫ - —ç—Ç–æ —Ç–∏–ø –¥–∞–Ω–Ω—ã—Ö, —Å–æ–¥–µ—Ä–∂–∞—â–∏–π —É–ø–æ—Ä—è–¥–æ—á–µ–Ω–Ω—É—é –ø–æ—Å–ª–µ–¥–æ–≤–∞—Ç–µ–ª—å–Ω–æ—Å—Ç—å —ç–ª–µ–º–µ–Ω—Ç–æ–≤. –°–ø–∏—Å–∫–∏ - –ø–æ–ª–µ–∑–Ω—ã–π —Ç–∏–ø –¥–∞–Ω–Ω—ã—Ö, –ø–æ—Å–∫–æ–ª—å–∫—É –æ–Ω–∏ –ø–æ–∑–≤–æ–ª—è—é—Ç —Ö—Ä–∞–Ω–∏—Ç—å –Ω–µ—Å–∫–æ–ª—å–∫–æ —Å–≤—è–∑–∞–Ω–Ω—ã—Ö –∑–Ω–∞—á–µ–Ω–∏–π –≤ –æ–¥–Ω–æ–π –ø–µ—Ä–µ–º–µ–Ω–Ω–æ–π. –° –ø–æ–º–æ—â—å—é —Å–ø–∏—Å–∫–∞ –≤—ã –º–æ–∂–µ—Ç–µ —Å–æ—Ö—Ä–∞–Ω–∏—Ç—å –Ω–∞–∑–≤–∞–Ω–∏—è 10 –ø–∞—Ä –æ–±—É–≤–∏ –≤ –æ–¥–Ω–æ–π –ø–µ—Ä–µ–º–µ–Ω–Ω–æ–π; –≤—ã –º–æ–∂–µ—Ç–µ —Å–æ—Ö—Ä–∞–Ω–∏—Ç—å —Å–ø–∏—Å–æ–∫ –ø–æ–∫—É–ø–æ–∫, –∫–æ—Ç–æ—Ä—ã–µ –≤—ã —Å–¥–µ–ª–∞–ª–∏ –≤ –º–∞–≥–∞–∑–∏–Ω–µ, –≤ –æ–¥–Ω–æ–π –ø–µ—Ä–µ–º–µ–Ω–Ω–æ–π.

–•–æ—Ç—è –≤—Å—Ç—Ä–æ–µ–Ω–Ω—ã–π —Ç–∏–ø –¥–∞–Ω–Ω—ã—Ö —Å–ø–∏—Å–∫–∞ —É–∂–µ —è–≤–ª—è–µ—Ç—Å—è –º–æ—â–Ω—ã–º, –¥–ª—è –±–æ–ª–µ–µ —Å–ª–æ–∂–Ω—ã—Ö –≤–∞—Ä–∏–∞–Ω—Ç–æ–≤ –∏—Å–ø–æ–ª—å–∑–æ–≤–∞–Ω–∏—è –æ–Ω –º–æ–∂–µ—Ç –æ–∫–∞–∑–∞—Ç—å—Å—è –Ω–µ–¥–æ—Å—Ç–∞—Ç–æ—á–Ω—ã–º. –í–æ—Ç –≥–¥–µ –ø—Ä–∏–≥–æ–¥–∏—Ç—Å—è —Ç–∏–ø –¥–∞–Ω–Ω—ã—Ö –º–∞—Å—Å–∏–≤–∞ NumPy. –ë–∏–±–ª–∏–æ—Ç–µ–∫—É NumPy –º–æ–∂–Ω–æ –ª–µ–≥–∫–æ –∏—Å–ø–æ–ª—å–∑–æ–≤–∞—Ç—å –¥–ª—è —Å–æ–∑–¥–∞–Ω–∏—è –º–∞—Å—Å–∏–≤–æ–≤ —Å –Ω–µ—Å–∫–æ–ª—å–∫–∏–º–∏ –∏–∑–º–µ—Ä–µ–Ω–∏—è–º–∏.

–í —ç—Ç–æ–º —Ä—É–∫–æ–≤–æ–¥—Å—Ç–≤–µ –º—ã –ø–æ–≥–æ–≤–æ—Ä–∏–º –æ —Ç–æ–º, —á—Ç–æ –ú–∞—Å—Å–∏–≤—ã NumPy, –ø–æ—á–µ–º—É –æ–Ω–∏ –ø–æ–ª–µ–∑–Ω—ã –∏ –∫–∞–∫ –≤—ã –º–æ–∂–µ—Ç–µ —Ä–∞–±–æ—Ç–∞—Ç—å —Å –Ω–∏–º–∏ –≤ —Å–≤–æ–µ–º –∫–æ–¥–µ. –ü—Ä–∏—Å—Ç—É–ø–∏–º!

–ß—Ç–æ —Ç–∞–∫–æ–µ –º–∞—Å—Å–∏–≤ NumPy?

–ú–∞—Å—Å–∏–≤ NumPy - —ç—Ç–æ –æ–±—ä–µ–∫—Ç –º–∞—Å—Å–∏–≤–∞, –∏—Å–ø–æ–ª—å–∑—É–µ–º—ã–π –≤ –±–∏–±–ª–∏–æ—Ç–µ–∫–µ NumPy Python. NumPy, —á—Ç–æ –æ–∑–Ω–∞—á–∞–µ—Ç —á–∏—Å–ª–æ–≤–æ–π Python, –ø—Ä–µ–¥—Å—Ç–∞–≤–ª—è–µ—Ç —Å–æ–±–æ–π –ø–∞–∫–µ—Ç, –∫–æ—Ç–æ—Ä—ã–π —á–∞—Å—Ç–æ –∏—Å–ø–æ–ª—å–∑—É–µ—Ç—Å—è –¥–ª—è –Ω–∞—É—á–Ω—ã—Ö –∏ –º–∞—Ç–µ–º–∞—Ç–∏—á–µ—Å–∫–∏—Ö –≤—ã—á–∏—Å–ª–µ–Ω–∏–π. –ö –Ω–µ–º—É –ø—Ä–∏–ª–∞–≥–∞–µ—Ç—Å—è —Ä—è–¥ –∏–Ω—Å—Ç—Ä—É–º–µ–Ω—Ç–æ–≤, –∫–æ—Ç–æ—Ä—ã–µ –º–æ–≥—É—Ç –ø–æ–º–æ—á—å —Å –∞–Ω–∞–ª–∏–∑–æ–º –¥–∞–Ω–Ω—ã—Ö –∏ –ø—Ä–æ–¥–≤–∏–Ω—É—Ç–æ–π –º–∞—Ç–µ–º–∞—Ç–∏–∫–æ–π. & Nbsp;

–í –æ–±—ã—á–Ω–æ–º Python (Python –±–µ–∑ –∫–∞–∫–∏—Ö-–ª–∏–±–æ –≤–Ω–µ—à–Ω–∏—Ö –ø–∞–∫–µ—Ç–æ–≤) –º–∞—Å—Å–∏–≤—ã - —ç—Ç–æ –º–æ—â–Ω–æ–µ —Å—Ä–µ–¥—Å—Ç–≤–æ , –Ω–æ –∏—Ö –æ–±—Ä–∞–±–æ—Ç–∫–∞ –º–æ–∂–µ—Ç –±—ã—Ç—å –º–µ–¥–ª–µ–Ω–Ω–æ–π. –° –¥—Ä—É–≥–æ–π —Å—Ç–æ—Ä–æ–Ω—ã, –º–∞—Å—Å–∏–≤—ã NumPy —Å—Ç—Ä–µ–º—è—Ç—Å—è –±—ã—Ç—å –Ω–∞ –Ω–µ—Å–∫–æ–ª—å–∫–æ –ø–æ—Ä—è–¥–∫–æ–≤ –±—ã—Å—Ç—Ä–µ–µ, —á–µ–º —Ç—Ä–∞–¥–∏—Ü–∏–æ–Ω–Ω—ã–π –º–∞—Å—Å–∏–≤ Python.

–¢–∞–∫–æ–µ –ø–æ–≤—ã—à–µ–Ω–∏–µ –ø—Ä–æ–∏–∑–≤–æ–¥–∏—Ç–µ–ª—å–Ω–æ—Å—Ç–∏ –¥–æ—Å—Ç–∏–≥–∞–µ—Ç—Å—è –∑–∞ —Å—á–µ—Ç —Ç–æ–≥–æ, —á—Ç–æ –º–∞—Å—Å–∏–≤—ã NumPy —Ö—Ä–∞–Ω—è—Ç –∑–Ω–∞—á–µ–Ω–∏—è –≤ –æ–¥–Ω–æ–º –Ω–µ–ø—Ä–µ—Ä—ã–≤–Ω–æ–º –º–µ—Å—Ç–µ –≤ –ø–∞–º—è—Ç–∏. –≠—Ç–æ —É–ø—Ä–æ—â–∞–µ—Ç Python –¥–æ—Å—Ç—É–ø –∫ —Å–ø–∏—Å–∫—É –∏ —É–ø—Ä–∞–≤–ª–µ–Ω–∏–µ –∏–º.

–ö–∞–∫ –æ–±—ä—è–≤–∏—Ç—å –º–∞—Å—Å–∏–≤ NumPy

–î–ª—è –Ω–∞—á–∞–ª–∞ –¥–∞–≤–∞–π—Ç–µ –Ω–∞—Å—Ç—Ä–æ–∏–º –º–∞—Å—Å–∏–≤ NumPy. –í —ç—Ç–æ–º —Ä—É–∫–æ–≤–æ–¥—Å—Ç–≤–µ –º—ã —Å–æ–±–∏—Ä–∞–µ–º—Å—è —Ö—Ä–∞–Ω–∏—Ç—å —Å—Ç—Ä–æ–∫–æ–≤—ã–µ –∑–Ω–∞—á–µ–Ω–∏—è –≤ –Ω–∞—à–µ–º –º–∞—Å—Å–∏–≤–µ. –≠—Ç–∏ —Å—Ç—Ä–æ–∫–æ–≤—ã–µ –∑–Ω–∞—á–µ–Ω–∏—è –ø—Ä–µ–¥—Å—Ç–∞–≤–ª—è—é—Ç —Å–æ–±–æ–π —Å–ø–∏—Å–æ–∫ —Å–ª–∞–¥–æ—Å—Ç–µ–π, –ø—Ä–µ–¥–ª–∞–≥–∞–µ–º—ã—Ö –≤ –º–µ—Å—Ç–Ω–æ–π –∫–æ—Ñ–µ–π–Ω–µ. –ú—ã –Ω–∞—á–Ω–µ–º —Å –∏–º–ø–æ—Ä—Ç–∞ –±–∏–±–ª–∏–æ—Ç–µ–∫–∏ NumPy:

–≠—Ç–∞ —Å—Ç—Ä–æ–∫–∞ –∫–æ–¥–∞ –∏–º–ø–æ—Ä—Ç–∏—Ä—É–µ—Ç numpy –∏–∑ Python –∏ –ø—Ä–∏—Å–≤–∞–∏–≤–∞–µ—Ç –±–∏–±–ª–∏–æ—Ç–µ–∫–µ –∏–º—è np. –≠—Ç–æ –æ–∑–Ω–∞—á–∞–µ—Ç, —á—Ç–æ –≤—Å—è–∫–∏–π —Ä–∞–∑, –∫–æ–≥–¥–∞ –Ω–∞–º –Ω—É–∂–Ω–æ —Ä–∞–±–æ—Ç–∞—Ç—å —Å –Ω–∞—à–∏–º –º–∞—Å—Å–∏–≤–æ–º, –Ω–∞–º –Ω—É–∂–Ω–æ —Ç–æ–ª—å–∫–æ –ø–æ–∑–≤–æ–Ω–∏—Ç—å np.

81% —É—á–∞—Å—Ç–Ω–∏–∫–æ–≤ –∑–∞—è–≤–∏–ª–∏, —á—Ç–æ –ø–æ—Å–ª–µ –ø–æ—Å–µ—â–µ–Ω–∏–µ —É—á–µ–±–Ω–æ–≥–æ –ª–∞–≥–µ—Ä—è. –ü–æ–ª—É—á–∏—Ç–µ –ø—Ä–∏–≥–ª–∞—à–µ–Ω–∏–µ –Ω–∞ —É—á–µ–±–Ω—ã–π –∫—É—Ä—Å —Å–µ–≥–æ–¥–Ω—è.

–°—Ä–µ–¥–Ω–∏–π –≤—ã–ø—É—Å–∫–Ω–∏–∫ —É—á–µ–±–Ω–æ–≥–æ –∫—É—Ä—Å–∞ –ø–æ—Ç—Ä–∞—Ç–∏–ª –º–µ–Ω–µ–µ —à–µ—Å—Ç–∏ –º–µ—Å—è—Ü–µ–≤ –Ω–∞ –ø–µ—Ä–µ—Ö–æ–¥–Ω—É—é –∫–∞—Ä—å–µ—Ä—É, –æ—Ç –Ω–∞—á–∞–ª–∞ —É—á–µ–±–Ω–æ–≥–æ –ª–∞–≥–µ—Ä—è –¥–æ –ø–æ–∏—Å–∫–∞ —Å–≤–æ–µ–π –ø–µ—Ä–≤–æ–π —Ä–∞–±–æ—Ç—ã.

–î–∞–ª–µ–µ –º—ã –∏–¥–µ–º. —á—Ç–æ–±—ã –æ–±—ä—è–≤–∏—Ç—å –Ω–∞—à –º–∞—Å—Å–∏–≤ —Å –ø–æ–º–æ—â—å—é –∏–Ω—Ç–µ—Ä—Ñ–µ–π—Å–∞ –º–∞—Å—Å–∏–≤–∞:

–ù–∞—à –º–∞—Å—Å–∏–≤ —Å–æ–¥–µ—Ä–∂–∏—Ç —á–µ—Ç—ã—Ä–µ —Å—Ç—Ä–æ–∫–æ–≤—ã—Ö –∑–Ω–∞—á–µ–Ω–∏—è. –ö–∞–∫ –∏ –≤ —Ç—Ä–∞–¥–∏—Ü–∏–æ–Ω–Ω–æ–º –º–∞—Å—Å–∏–≤–µ Python, –º—ã –∑–∞–∫–ª—é—á–∏–ª–∏ –≤—Å–µ —ç–ª–µ–º–µ–Ω—Ç—ã –≤ –Ω–∞—à–µ–º —Å–ø–∏—Å–∫–µ –≤ –∫–≤–∞–¥—Ä–∞—Ç–Ω—ã–µ —Å–∫–æ–±–∫–∏. –ß—Ç–æ–±—ã –æ–±—ä—è–≤–∏—Ç—å –º–∞—Å—Å–∏–≤ NumPy, –º—ã –∏—Å–ø–æ–ª—å–∑–æ–≤–∞–ª–∏ –º–µ—Ç–æ–¥ –º–∞—Å—Å–∏–≤–∞, –∫–æ—Ç–æ—Ä—ã–π —è–≤–ª—è–µ—Ç—Å—è —á–∞—Å—Ç—å—é np. –≠—Ç–æ —Å–æ–∑–¥–∞–µ—Ç –æ–±—ä–µ–∫—Ç ndarray, –∫–æ—Ç–æ—Ä—ã–π —è–≤–ª—è–µ—Ç—Å—è –≤—Å—Ç—Ä–æ–µ–Ω–Ω—ã–º —Ç–∏–ø–æ–º –º–∞—Å—Å–∏–≤–∞ NumPy.