version 10 - How to get updates for Mathematica V10

As you know, Mathematica V10 has just been released and I think a lot of updates will be released. However, I don't see any command in the help menu to update (which is present in most other software).

How would we know if an update is available or not?

I am using trial version of V10.

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Answer

We can push paclet updates out directly, I think PacletManager guarantees that you'll have them within a week (as long as you have an internet connection).

This only works for certain functionality that has been written in the paclet form (e.g. Machine Learning, Dataset, SemanticImport). I'm really excited about that, because we can respond quickly to what our customers need, and if they find bugs we can potentially address them very fast.

The kernel can't be upgraded this way, however. And of course a lot of functionality lives directly in the kernel. Point releases are how the kernel gets updated.

Point releases, of which the next is of course 10.0.1 and is supposed to happen in the next few weeks (not an official promise), will require manual download. I imagine we'll send an email when that happens.

Comments

functions - Get leading series expansion term?

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I want to use Minimize where the variables to minimize are indices pointing into an array. Here a MWE that hopefully shows what my problem is. vars = u@# & /@ Range[3]; cons = Flatten@ { Table[(u[j] != #) & /@ vars[[j + 1 ;; -1]], {j, 1, 3 - 1}], 1 vec1 = {1, 2, 3}; vec2 = {1, 2, 3}; Minimize[{Total@((vec1[[#]] - vec2[[u[#]]])^2 & /@ Range[1, 3]), cons}, vars, Integers] The error I get: Part::pkspec1: The expression u[1] cannot be used as a part specification. >> Answer Ok, it seems that one can get around Mathematica trying to evaluate vec2[[u[1]]] too early by using the function Indexed[vec2,u[1]] . The working MWE would then look like the following: vars = u@# & /@ Range[3]; cons = Flatten@{ Table[(u[j] != #) & /@ vars[[j + 1 ;; -1]], {j, 1, 3 - 1}], 1 vec1 = {1, 2, 3}; vec2 = {1, 2, 3}; NMinimize[ {Total@((vec1[[#]] - Indexed[vec2, u[#]])^2 & /@ R...

plotting - Plot 4D data with color as 4th dimension

I have a list of 4D data (x position, y position, amplitude, wavelength). I want to plot x, y, and amplitude on a 3D plot and have the color of the points correspond to the wavelength. I have seen many examples using functions to define color but my wavelength cannot be expressed by an analytic function. Is there a simple way to do this? Answer Here a another possible way to visualize 4D data: data = Flatten[Table[{x, y, x^2 + y^2, Sin[x - y]}, {x, -Pi, Pi,Pi/10}, {y,-Pi,Pi, Pi/10}], 1]; You can use the function Point along with VertexColors . Now the points are places using the first three elements and the color is determined by the fourth. In this case I used Hue, but you can use whatever you prefer. Graphics3D[ Point[data[[All, 1 ;; 3]], VertexColors -> Hue /@ data[[All, 4]]], Axes -> True, BoxRatios -> {1, 1, 1/GoldenRatio}]

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