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How can I get a curve from a trace, and calculate it's length?
Answered
As follow:
https://www.geogebra.org/cl...
I want to know the length of the trace of point P. Can I get a curve from a trace, or there's a direct way to calculate it's length?
Thanks.
Files:
the length of t...
The same question 
What you see in the algebra view is not exact the definition of the object.
You can see the definition for example in the Properties/Basic/Definition.
In the attachment it has some explanations. If not clear then please ask more specifically.
Bonjour ,
ça ressemble à une fonction sinus mais il faudrait savoir comment est défini le point P
Cordialement
If we think a little bit more direct to reduce dependencies to one variable t (k),
we get a term of the moving point P and do integrate to the arc length
https://www.geogebra.org/m/qbfqhvyq
this is called Zykloide - Rollkurve
https://www.geogebra.org/m/dz28hcyy
there exist a command Locus( <Point Creating Locus Line>, <Slider> )and LocusEquation( <Locus> )
but I was not very successful with it...
With the parameter equation for cycloids (wikipedia) and with Locus()
Advanced: more general parameter equation for a and a' and more independent.
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