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josh wendt
April 19th, 2016, 05:57 AM
How do you measure the length of a curved line?

Reise
April 19th, 2016, 06:10 AM
You need to integrate the function which the curved line represents on a certain interval.

Beware, it's kinda disconcerting when you're not accustomed, and - obviously - when you have no notion of derivative and primitive functions and in trigonometry.

Typhlosion
April 24th, 2016, 02:11 PM
The wikipedia article (https://en.wikipedia.org/wiki/Arc_length) is very straightfoward on explaining. I'm currently studying this and have a test on Wednesday!