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Apr
25
comment Getting PlotPoints value from a Plot
@kglr, that's what I told Jason; the only snag in that is that it doesn't account for PlotRangePadding.
Apr
25
comment Why PolarPlot can have negative $r$?
@John, and I gotta say, the analytic geometry books I've seen all mention that $r$ can be negative. OTOH, they're old, and maybe the OP's newfangled books now have restrictions in place.
Apr
25
comment Getting PlotPoints value from a Plot
Yes, I was merely anticipating people who might ask why you didn't just extract PlotRange from the resulting Graphics[] object.
Apr
25
comment Getting PlotPoints value from a Plot
Did you have a look at the FullForm[] of the output of Flatten[(* stuff *)]?
Apr
25
comment Getting PlotPoints value from a Plot
For your perusal: TracePrint[Plot[{Sin[x], Sin[2 x], Sin[3 x]}, {x, 0, 2 π}], (MaxRecursion -> _Integer) | (PlotPoints -> _Integer), TraceInternal -> True]. You can then apply Charting`get2DPlotRange[] to the output afterwards. (N.B. PlotRange[graphics] and Charting`get2DPlotRange[graphics] will have different results in general, depending on the PlotRangePadding setting.)
Apr
25
revised Finding Laplace Transform
edited tags
Apr
25
comment Is there a good way to schematically show that 3 vectors are perpendicular?
Where's the code?
Apr
24
comment How to generate higher dimensional convex hull?
Consider for instance the 3D convex hull. The points are organized (alright, that may have been the more appropriate word to use) so that there is a polygon corresponding to each facet of the hull. In the 4D case, you have cells; how should the points be grouped in those individual cells? Or will you be satisfied with a routine that returns just the coordinates of the corners?
Apr
24
comment How to generate higher dimensional convex hull?
Let's restrict ourselves to the 4D case, for simplicity. How do you expect the points making up the corners of your convex hull to be arranged?
Apr
24
revised How to generate higher dimensional convex hull?
edited tags
Apr
24
revised What would be the most efficient way of finding the first repeated term in Sylvester's sequence modulo the $n$th prime?
edited tags
Apr
24
reviewed Leave Open What do the lines in a ContourPlot Mean?
Apr
24
reviewed Leave Open Using ValueQ to test whether “hash” key exists fails when key is given as variable
Apr
24
reviewed Leave Open How to select very small components in an image
Apr
24
reviewed Reject and Edit How to fill in an irregular border of an image
Apr
24
revised How to fill in an irregular border of an image
deleted 48 characters in body
Apr
24
answered Are there any code which just derivative of piecewise function(same distence)?
Apr
24
revised Find the number of $n$ such that $n!$ is a sum of three squares
deleted 19 characters in body
Apr
24
revised Find the number of $n$ such that $n!$ is a sum of three squares
rolled back to a previous revision
Apr
24
comment Solving coupled differential equations with unknown constants
What happens when you feed them into DSolve[]?