What is the formula for plotting an accelerating involute curve?

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Discussion Overview

The discussion revolves around finding a formula for plotting an accelerating involute curve. Participants explore the concept of acceleration in the context of involute curves, seeking clarity on the mathematical representation needed for plotting.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant requests assistance with a formula for an accelerating involute curve and references a wiki page on involutes.
  • Another participant questions the meaning of "accelerated," suggesting that additional context is necessary.
  • A different participant proposes that the circle of derivation is increasing as the "string" around that circle enlarges, hinting at a relationship between the involute and its derivation.
  • One participant summarizes their previous experience with an accelerating involute and reiterates the request for a formula.
  • Another participant notes that the wiki page contains formulas for general and specific types of curves, questioning whether one of those might be applicable.
  • One participant expresses difficulty in deciphering the necessary information from the wiki to plot the curve, indicating the need for further clarification.
  • A later reply discusses the requirement for a parametric plot for most formulas on the referenced page, providing an example of a parametric equation and a link to a plot generated using WolframAlpha.

Areas of Agreement / Disagreement

Participants do not appear to reach consensus on the definition of "accelerated" in this context, and there are multiple competing views regarding the appropriate formulas and methods for plotting the curve.

Contextual Notes

There is uncertainty regarding the specific definition of acceleration in relation to involute curves, as well as the applicability of the formulas provided in the referenced wiki page. The discussion reflects varying levels of understanding and interpretation of the mathematical concepts involved.

homerwho
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TL;DR
I once viewed an involute which the involute accelerated.
Can someone help me with a formula for an accelerating involute curve? I have found this wiki on involute
 
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What do you mean by "accelerated"?

It looks like there is a lot of context missing.
 
The circle of derivation is increasing as the "string" around that circle is enlarging
 
homerwho said:
Summary: I once viewed an involute which the involute accelerated.

Can someone help me with a formula for an accelerating involute curve? I have found this wiki on involute
This wiki page you cited has a formula for a general curve, and several more for specific types of curves. Isn't one of these what you're looking for?
 
possibly. that's why I posted in the math forum. I can't decipher from that what I would need to plot. Thanks
 
homerwho said:
possibly. that's why I posted in the math forum. I can't decipher from that what I would need to plot. Thanks
For most of the formulas on the page you linked to, you need to do a parametric plot. For example, to plot ##x(t) = t + \sin(t), y(t) = 3 + \cos(t)## on the interval ##[0, 2\pi]##, you can do this in WolframAlpha:

parametric plot (t + sin t, 3 + cos t), t=0..2pi

Here's a link to the plot - https://www.wolframalpha.com/input/?i=parametric+plot+(t+++sin+t,+3+++cos+t),+t=0..2pi
 
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