How to calculate the arc length of a segment of a parameterized curve in 3D?
Answered
I would like to calculate manually, perhaps using the partial derivatives with respect to x and y and PT, the length of the segment of C spanning from points A and B.
How can I set things up to use the integral function?
Please note that I am not looking for built-in functions for length.
I have seen posts on this operation in 2D, but not in 3D.
Files:
Arc length.ggb
The same question 
yo lo haría así
valor en rojo
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