弧度量角器, Bar 數學, Purasbar

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There are currently 7 posts.

	Floor 1 巨大八爪鱼 6/18/15 16:51
	Floor 2 巨大八爪鱼 6/18/15 16:53
	Floor 3 巨大八爪鱼 6/18/15 16:56 用這個量角器可以很方便的測量計算機屏幕上的角。因為該圖片可以無限縮放。
	Floor 4 巨大八爪鱼 6/18/15 16:58 市售的量角器全部都是角度制的，這極大地限制了弧度制的使用
	Floor 5 巨大八爪鱼 6/18/15 17:07 https://en.wikipedia.org/wiki/Protractor Radian-scale protractors measure angles in radians.
	Floor 6 巨大八爪鱼 6/18/15 17:11 http://www.amazon.com/ProRadian-Pro-Radian-Scale-Protractor/dp/B00D0O4ZJA ProRadian Pro Radian Scale Protractor $6.50
	Floor 7 巨大八爪鱼 6/18/15 17:14 不過也可以把這幅圖列印下來，剪成園做一個量角器。

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