Wolfram Mathematica

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Lukas Lang

12:17

Does anyone know the exact limitations for CellID? Consider the following example:

NotebookWrite[CreateNotebook[], {
  Cell["foobar", CellID -> 0],
  Cell["foobar", CellID -> 1000000],
  Cell["foobar", CellID -> 1000000000],
  Cell["foobar", CellID -> 1000000000000]
  }, All]

Looking at the resulting notebooks CellIDs (press CTRL+SHIFT+E on windows), it seems like 0 is completely broken, and anything bigger than ~10^9-10^12 (didn't do more tests) is invalid

ok, it appears to be limited to 2^31-1... Does anyone know of a place where this is documented?

Also, are CellID guaranteed to be unique when left unspecified, even when some Cells in the same Notebook have a custom CellID? The documentation says "When CellID is managed by the Wolfram System, its value is guaranteed to be unique in a given notebook. It is possible for a CellID to be set by hand, but its uniqueness will no longer be guaranteed.". I read this as "If you don't specify anything for a Cell, the automatic value for that Cell will not collide with anything" - is this correct?

3 hours later…

Rumplestillskin

15:21

Hi All! Wondering if anyone can help me out. I’m subtracting two numbers and plotting the results. They numbers are incredibly close together so when I plot there is some sort of singular behaviour occurring. Does anyone know how to mend this? Maybe something similar to the VPA command in MATLAB?

halirutan

@Rumplestillskin Without an example, it is really hard to give advice.

gdelfino

16:20

Anyone using an Enterprise license? I would like to know what should $LicenseType return when you have one.

@Rumplestillskin The related functions for that are at reference.wolfram.com/language/guide/…

Feeds

17:06

Wolfram Blog: The Shape of the Vote: Exploring Congressional Districts with Computation

posted on June 26, 2018 by Brian Wood

In the past few decades, the process of redistricting has moved squarely into the computational realm, and with it the political practice of gerrymandering. But how can one solve the problem of equal representation mathematically? And what can be done to test the fairness of districts? In this post I’ll take a deeper dive with [...]

3 hours later…

halirutan

20:02

→ 19 messages moved to Paclet Servers

@MarcoB @rhermans @m_goldberg For your information, as you are the ones who do much site work:

221

Q: Increase close vote weight for gold tag badge holders

In order to increase the efficiency with which poor quality questions are closed, it could make sense to have weighted close votes for a small subset of qualified users. A very good way to measure the qualified users would be to leverage the tag badges. However, it needs to be rationally limite...