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    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb.php

    Line Number: 25

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 25
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
    Line: 315
    Function: require_once

  • 비오는 날 밖에 나온 달팽이의 수를 구하라
    비오는 날 밖에 나온 달팽이의 수를 구하라
  • 사칙연산 기호 모양의 근원이 뭘까?
    사칙연산 기호 모양의 근원이 뭘까?

수학공부 꿀팁

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    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb.php

    Line Number: 77

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 77
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
    Line: 315
    Function: require_once

  • [오쌤의 수학공부법] 자기 주도적 방학 계획 세우기
    [오쌤의 수학공부법] 자기 주도적 방학 계획 세우기
  • 내 진로에 수학이 필요한 이유
    내 진로에 수학이 필요한 이유
51
  • 인생은 항등식

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
    Line: 315
    Function: require_once

    찜하기
  • 하나가 된다는건

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
    Line: 315
    Function: require_once

    찜하기
  • A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
    Line: 315
    Function: require_once

    찜하기
  • 찍신의 비결은 확률?!

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
    Line: 315
    Function: require_once

    우수
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  • 바코드의 비밀

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
    Line: 315
    Function: require_once

    찜하기
  • 타원의 넓이는 어떻게 구할까? 카발리에리의 원리

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
    Line: 315
    Function: require_once

    우수
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  • 도박의 필승법

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
    Line: 315
    Function: require_once

    우수
    찜하기
  • 포물선, 타원, 쌍곡선을 한번에! 원뿔곡선

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
    Line: 315
    Function: require_once

    찜하기
  • 지하철노선도 속에 숨어 있는 그래프 이론

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
    Line: 315
    Function: require_once

    우수
    찜하기
  • 공평하게 돈을 내는 방법은?

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
    Line: 315
    Function: require_once

    우수
    찜하기
  • 다각형의 넓이를 구하는 방법

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
    Line: 315
    Function: require_once

    우수
    찜하기
  • QR코드에 수학적 원리가 숨겨져 있었다고?

    A PHP Error was encountered

    Severity: Warning

    Message: count(): Parameter must be an array or an object that implements Countable

    Filename: inc/article_list_thumb_template.php

    Line Number: 31

    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb_template.php
    Line: 31
    Function: _error_handler

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_list_thumb.php
    Line: 148
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
    Line: 101
    Function: view

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
    Line: 315
    Function: require_once

    우수
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  • 폴리매스 문제는 과학기술진흥기금 및 복권기금의 재원으로 운영되고, 과학기술정보통신부와 한국과학창의재단의 지원을 받아 수행된 성과물로 우리나라의 과학기술 발전과 사회적 가치 증진에 기여하고 있습니다.

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