目錄

基礎計算

<aside> <img src="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/4048f48b-6e81-493c-b064-e7e455541b4f/iconmonstr-link-1.svg" alt="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/4048f48b-6e81-493c-b064-e7e455541b4f/iconmonstr-link-1.svg" width="40px" /> NA、Inf、NaN、NULL 特殊值

R语言初级教程(12): NA、Inf、NaN、NULL 特殊值

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商

<aside> <img src="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/0912c71c-1a79-4917-83f6-23a74d595e1f/iconmonstr-code-2.svg" alt="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/0912c71c-1a79-4917-83f6-23a74d595e1f/iconmonstr-code-2.svg" width="40px" /> x=9%/%2

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餘

<aside> <img src="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/0912c71c-1a79-4917-83f6-23a74d595e1f/iconmonstr-code-2.svg" alt="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/0912c71c-1a79-4917-83f6-23a74d595e1f/iconmonstr-code-2.svg" width="40px" /> x=9%%2

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平方

<aside> <img src="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/0912c71c-1a79-4917-83f6-23a74d595e1f/iconmonstr-code-2.svg" alt="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/0912c71c-1a79-4917-83f6-23a74d595e1f/iconmonstr-code-2.svg" width="40px" /> x <- 3**2

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根號

<aside> <img src="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/0912c71c-1a79-4917-83f6-23a74d595e1f/iconmonstr-code-2.svg" alt="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/0912c71c-1a79-4917-83f6-23a74d595e1f/iconmonstr-code-2.svg" width="40px" /> x <- sqrt(64)

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絕對值

<aside> <img src="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/0912c71c-1a79-4917-83f6-23a74d595e1f/iconmonstr-code-2.svg" alt="https://s3-us-west-2.amazonaws.com/secure.notion-static.com/0912c71c-1a79-4917-83f6-23a74d595e1f/iconmonstr-code-2.svg" width="40px" /> x = abs(-7)

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e.g.

A(-8,-2) B(0,6) C(3,-2) 取面積

trangleArea=abs(3-(-8))*abs(6-(-2))/2

A(6,0) B(0,0) 圓周園面積

pi
circlePeremiter=(6*2)*pi
circleArea=(6**2)*pi