Eliminating the Parameter from Helix Equation

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Discussion Overview

The discussion revolves around the mathematical problem of eliminating the parameter from the parametric equation of a helix defined as r(t) = . Participants explore the possibility of expressing the helix in terms of the Cartesian coordinates x, y, and z without the parameter t.

Discussion Character

  • Mathematical reasoning

Main Points Raised

  • One participant asks if it is possible to eliminate the parameter t and express the helix in terms of x, y, and z.
  • Another participant suggests that x can be expressed as sin(z) and y as cos(z).
  • A later reply reiterates the same expressions for x and y, confirming the earlier statement.

Areas of Agreement / Disagreement

Participants appear to agree on the expressions for x and y in terms of z, but the overall question of eliminating t remains open without a definitive conclusion.

Contextual Notes

The discussion does not address the implications of the proposed expressions or whether they fully resolve the original question of eliminating the parameter.

Eve Litman
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Let's say you have a helix defined parametrically as
r(t) =<sin(t), cos(t), t>

Is it possible to eliminate t and write an equation for this helix just in terms of x, y, and z?
 
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Eve Litman said:
Let's say you have a helix defined parametrically as
r(t) =<sin(t), cos(t), t>

Is it possible to eliminate t and write an equation for this helix just in terms of x, y, and z?
How would you express ##z## as a function of ##t##?
##z=## ?
 
x=sin(z), y=cos(z).
 
mathman said:
x=sin(z), y=cos(z).
Thank you!
 

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