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visits member for 3 years, 3 months
seen May 27 at 14:44

May
26
awarded  Popular Question
Jul
15
accepted What's $P$ and what's $Q$ in this classic proof of the irrationality of $\sqrt 2$?
Jul
15
asked What's $P$ and what's $Q$ in this classic proof of the irrationality of $\sqrt 2$?
Mar
20
accepted Find the demonstration error for the statement “All positive integers are equal”
Mar
20
awarded  Editor
Mar
20
revised Find the demonstration error for the statement “All positive integers are equal”
edited body
Mar
20
asked Find the demonstration error for the statement “All positive integers are equal”
Mar
17
awarded  Supporter
Sep
1
awarded  Scholar
Sep
1
accepted Canonical to Parametric, Ellipse Equation
Sep
1
comment Canonical to Parametric, Ellipse Equation
I'm doing this for myself, I'm revising some geometry and linear algebra to better understand some concepts in Computer Graphics. But I had pretty rigorous math teachers on my first semesters, so I got this "fear" of doing wrong things. Thank you for you enlightening explanations.
Sep
1
comment Canonical to Parametric, Ellipse Equation
I was thinking in make some supositions to hold my equatios, I think that it's clear now, I can accept this fact now ^^. Thank you very much.
Sep
1
awarded  Student
Sep
1
comment Canonical to Parametric, Ellipse Equation
@Thijs Laarhoven, surely. It's easy to show that with a counter example.
Sep
1
comment Canonical to Parametric, Ellipse Equation
@Hennig Makholm. What's the correct way to do this, I mean, without dodgy steps, because I was only able to dos this. And what do you mean "by inspection"? And finnaly, an arbitrary solution would be a (x,y) point? Thank you, you are really helping me.
Aug
31
asked Canonical to Parametric, Ellipse Equation