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#1 2010-01-07 22:04:53
- Identity
- Member
- Registered: 2007-04-18
- Posts: 934
graph into parametric
How can you convert a graph of z = g(x,y) into a parametric representation of two variables?
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#2 2010-01-08 03:46:16
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: graph into parametric
Hi Identity;
I think it is best done with an example:
z = x^2 + y^2
Just say x^2 = u, y^2 = v. Now:
z = u+v
x = √ u
y = √ v
Sometimes you can eliminate one of the variables ( trig equations), example the well known helix. I don't think this is always possible.This is what I am looking at:
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3 2010-01-08 06:49:48
- Identity
- Member
- Registered: 2007-04-18
- Posts: 934
Re: graph into parametric
Oh i see, thanks bobbym
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#4 2010-01-08 12:01:33
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: graph into parametric
Hi identity;
Good, then you can explain it to me, because I sure made a mess out the explanation.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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