How to prove Any curve in space can be written as for a parameter

In summary, the conversation is about proving that any curve in space can be written as a parameteric equation, and the use of this property to prove that the gradient is normal to the curve. The conversation also discusses the importance of showing effort and not providing complete solutions to homework questions.
  • #1
persyan
5
0
how to prove Any curve in space can be written as for a parameter
 
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  • #2
persyan said:
how to prove Any curve in space can be written as for a parameter

Can you provide more details about your question? What part of mathematics are you studying where this question comes up? And "as for a parameter" is not translating very well. Can you give examples of what you are asking about?
 
  • #3
berkeman said:
Can you provide more details about your question? What part of mathematics are you studying where this question comes up? And "as for a parameter" is not translating very well. Can you give examples of what you are asking about?
Any curve in space can be written as for a parameter p(t)
prove it
 
  • #4
Again, the translation is not working so well. What branch of mathematics are you studying? Can you provide a link to similar questions and proofs? What methods of proof are you familiar with?
 
  • #5
I think he might be saying, any curve in 3 dimensions can be represented as a system of parametric equations, x(t), y(t), z(t). Which is a non-trivial result - in fact, I don't think that's even true.
 
  • #6
ellipsis said:
I think he might be saying, any curve in 3 dimensions can be represented as a system of parametric equations, x(t), y(t), z(t). Which is a non-trivial result - .
you are right
you are better than mentor
 
  • #7
persyan said:
you are right
you are better than mentor

At math he definitely is! :D
 
  • #8
berkeman said:
Again, the translation is not working so well. What branch of mathematics are you studying? Can you provide a link to similar questions and proofs? What methods of proof are you familiar with?
Any curve in space can be written as p(t)
for a parameter t
its used to prove the gradient is normal to the curve
 
  • #9
persyan said:
Any curve in space can be written as p(t)
for a parameter t
its used to prove the gradient is normal to the curve

Can you show an example of finding the gradient for a curve? What kind of curve? Like equipotential lines?
 
  • #10
berkeman said:
Can you show an example of finding the gradient for a curve? What kind of curve? Like equipotential lines?
why don't you answer main question
prove
Any curve in space can be written
parameteric
 
  • #11
persyan said:
why don't you answer main question
prove
Any curve in space can be written
parameteric

Because the PF rules require that you show effort. Especially if this is a schoolwork question, which many of the Mentors believe it is. You need to show some effort, and tell us what this question is for, or this thread will be locked.
 
  • #12
persyan said:
why don't you answer main question
prove
Any curve in space can be written
parameteric
This is why -- (see Homework Guidelines at https://www.physicsforums.com/threads/physics-forums-global-guidelines.414380/)
Giving Full Answers:
On helping with questions: Any and all assistance given to homework assignments or textbook style exercises should be given only after the questioner has shown some effort in solving the problem. If no attempt is made then the questioner should be asked to provide one before any assistance is given. Under no circumstances should complete solutions be provided to a questioner, whether or not an attempt has been made.

Thread closed.
 

1. How do you define a curve in space?

A curve in space is a continuous path that can be described as a set of points in three-dimensional space.

2. What is a parameter in relation to a curve in space?

A parameter is a variable that represents a specific point along the curve and can be used to define its shape and direction.

3. Can any curve in space be written as a parameter?

Yes, any curve in space can be written as a parameter using a mathematical equation that relates the parameter to the coordinates of points along the curve.

4. How do you prove that any curve in space can be written as a parameter?

This can be proved mathematically by showing that the equation for the curve can be parametrized, meaning that it can be expressed in terms of a single parameter.

5. Are there any limitations to this proof?

While this proof applies to a wide range of curves in space, there may be some complex curves that cannot be easily parametrized. Additionally, the proof assumes that the curve is continuous and has a well-defined shape, which may not always be the case in real-world scenarios.

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