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seen Apr 14 at 21:49

May
22
revised Finding ranges of a parameter for which a function is always positive
added 3 characters in body
May
22
revised Finding ranges of a parameter for which a function is always positive
added 339 characters in body
May
22
answered Finding ranges of a parameter for which a function is always positive
May
22
comment Finding the area, algebraic curve and jaggedness of an arbitrary shape
@J.M. let's go to chat
May
22
comment Finding the area, algebraic curve and jaggedness of an arbitrary shape
@J.M. I think you also need to use ArcTan[x,y] rather than the form you are currently using
May
22
comment Finding the area, algebraic curve and jaggedness of an arbitrary shape
@J.M. are you sure your routine sorts them anticlockwise (or clockwise)? Also, even if you sort by the polar angle, that does not guarantee that a ray coming out of the centre of the shape will not intersect it twice.
May
22
revised Plot data from txt file?
added 6 characters in body
May
22
comment Select Solution with real (positive, etc) coefficients - ignoring variables
how do you obtain these solutions in the first place? Have you tried NSolve (which you can ask for real solutions)?
May
22
comment Rotating perspective of an image in the z axis
Have you looked at ImagePerspectiveTransformation?
May
22
answered Plotting with NDSolve`StateData`
May
22
comment Plotting with NDSolve`StateData`
have a look at this: reference.wolfram.com/mathematica/tutorial/…
May
22
awarded  Enlightened
May
22
awarded  Nice Answer
May
21
comment How do I plot a function over a subset of the displayed interval?
@R.M Right, I meant "undesirable". Sorry for the confusion
May
21
comment How do I plot a function over a subset of the displayed interval?
@Mr.Wizard yes I saw it in your answer. didn't think of it!
May
21
answered How do I plot a function over a subset of the displayed interval?
May
20
revised how to solve an implicit integral equation? (iterate to a functional fixed point?)
edited body
May
20
comment how to solve an implicit integral equation? (iterate to a functional fixed point?)
mind you I could have mis-transcribed your equation, differentiated incorrectly, misunderstood your problem etc.
May
20
answered how to solve an implicit integral equation? (iterate to a functional fixed point?)
May
20
comment how to solve an implicit integral equation? (iterate to a functional fixed point?)
If I understood correctly you're trying to solve an integral equation for g. Mathematica can't do this. You could perhaps reformulate your problem.