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7h
comment Derivative of vector dot product with respect to a vector
OK, then I initially misunderstood your question. It's not a duplicate of the Q I linked earlier.
7h
comment Derivative of vector dot product with respect to a vector
It's easier for people to get started on this if you give examples of gvecI and x. Otherwise it's not clear if they have values at all, or are supposed to be just symbols about which we make certain assumptions.
7h
comment Derivative of vector dot product with respect to a vector
Some quantities are undefined and their dimensions thus unclear. In the absence of that info, my best guess is that this is a possible duplicate of Quick Hessian matrix and gradient calculation?, specialized to n=1 (i.e., first derivatives).
7h
comment All value types for a symbol?
Just one issue to keep in mind (maybe related to the missing Messages, too): Attributes of built-in functions can be misleading unless you evaluate the function to force auto-loading of missing information. See here. So in other words, you can't always get accurate information about the language before actually using it...
12h
comment Sections with unidirectionally shared variables
All I can say is: start section 1 with this: Clear[Evaluate[Context[]<>"*"]]. This will allow the symbolic stuff to always work. Trying to fix an existing notebook to do everything you asked is probably not realistic.
12h
comment How can I remove the decimals in the frame ticks?
Looking back at the question, it occurred to me that you may just be looking for Round instead of trimPoint. The difference is that trimPoint allows a certain number of significant digits including before and after the decimal point. This is why in the above example only the larger numbers are turned into integers. Round outputs integers for all ticks.
12h
comment Sections with unidirectionally shared variables
Closely related Q&A: Context unique to each group at a specified level - seems clear to me that Contexts are the way to go - but the current question is asking if it can be done without them. Anything is possible, but I wouldn't do it.
13h
comment Sections with unidirectionally shared variables
By the way, I think it's a valid question because it the notebook paradigm leads to exactly this kind of confusion very frequently.
13h
comment Sections with unidirectionally shared variables
That's the closest I think one can get (+1) (I was writing my earlier comment when you posted this)...
13h
comment Sections with unidirectionally shared variables
When you make an assignment to a variable, that's an operation performed by the Kernel. But the Kernel doesn't know anything about the sectioning of the notebook from which the command was sent. So when jumping between sections of a notebook, you're doing things that are invisible to the Kernel. You will need to follow the suggestions of @MarcoB or use Contexts.
1d
comment Plot given points, lines and arcs in 3D
See also How to draw an ellipse arc in 3D?
1d
comment How to draw the pentagon or hexagon into the square size image
What have you tried?
2d
comment Part of an Image cut/lost when exported to EPS file
@george2079 That's true - I added a comment about how to set AspectRatio which may be better than setting a vertical dimension.
2d
comment Part of an Image cut/lost when exported to EPS file
@OleksandrR. You're right, I'll correct the terminology. Anyway, I meant the unit used by ImageSize, and that is in fact "points."
2d
comment How to segment letters and text blobs?
As you know, it's discouraged to post questions that don't show any effort at writing your own code.
2d
comment What can I use as an equivalent of python zip in mathematica inside of Sum[]?
You don't even need Sum at all because Plus and Times automatically thread over lists. Start by reading http://reference.wolfram.com/language/howto/CombineAndRearrangeLists.html
Jul
29
comment How to define the Bernstein function like the built-in BernsteinBasis?
@ShutaoTang I don't understand why you edited my answer. The added definition doesn't seem to have anything to do with what I said.
Jul
29
comment Implementing Picard's Iteration for solving ODEs
@Guesswhoitis. Yes, this one's hard to run in GedankenMathematica.
Jul
29
comment Implementing Picard's Iteration for solving ODEs
I upvoted this, but have also posted an answer that is lightning-fast compared to this one.
Jul
28
comment Huge EPS file when exporting Graphics3D
@george2079 Then it should be a duplicate of How do I cut down on file size of exported eps without losing quality. But I felt that the analogous PDF question has a broader discussion.