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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
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Function: urldecode

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
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Function: require_once

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Function: require_once

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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: is_dir

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
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Function: parseLatexImg

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: mkdir

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: file_put_contents

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: getLatexImg

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
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Function: parseLatexImg

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
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Function: initBoardView

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Function: getComment

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Function: require_once

개념 기사 기사 작성법
내가 아는 수학개념을 쉽게 설명해주세요!
[개념 기사] 포물선, 타원, 쌍곡선을 한번에! 원뿔곡선
유한의끝도못본남자 2020.03.20 05:39
공유하기
페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

원뿔곡선...? 많이생소한이름이지요? 사실 포물선과 타원, 이차곡선을 통틀어서 원뿔곡선이라고말합니다

원뿔곡선은 이론중에하나로 원뿔을 여러각도로잘라 표현된것을 연구하는 학문입니다

원뿔곡선은 아폴로니우스의 연구로 비약적으로  발전하였습니다

원뿔곡선은

원뿔을 수학에서 원뿔 곡선 어떤2차원 단면으로 원뿔을 잘랐을 때 생기는 함수를 말합니다 원뿔의 모선과 밑면의 사잇각 a와 자르는 평면과 밑면의 사잇각 b를 생각할 때에  a와 b가 같으면 포물선 b보다 a가크면 이면 타원, a보다 b가크면이면 쌍곡선이됩니다

 

어때요? 신기하지않나요?

원뿔을 자를때 함수가생긴다니

혹시 위내용을 이해못하신분들을 위해 정리해드리겠습니다

여러분

한번 원뿔을 비스듬히(밑면과예각) 잘라 단면을 한번보면

타원이보입니다

왜냐? 원뿔은 원래 가로로 수평으로 자르게되면원이됩니다

점점점... 기울이면 삼각비의따라 장축, 단축의 길이가 점점 a imes cos x, b imes cosy 가됩니다 (단, x,y는 각각의 회전각, a,b는 장,단축)

그러면 장축과 단축에길이가 결국은 달라져 타원이됩니다

그러면 포물선과, 쌍곡선은 어떤식으로 나타날까요?

이건 여러분들의 퀴즈로 맡기겠습니다

힌트를 보려면 아래를 드레그하세요

힌트:쌍곡선은포물선이2개가반대방향으로 있는것이다

태그
#원뿔

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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/views/ver3/inc/article_view.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Article.php
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