Mathematica 9.0 looks a bit fuzzy on the retina screen, how can I increase the resolution?
Here another screenshot showing a direct comparison between the browser and Mathematica
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Another option is the free app Retinizer, which I used for a while with Mathematica 8. It cleaned up the text, but I found caused visual glitches with the documentation and added some instability throughout. That said, it made the text look beautiful which helped the eyes when reading a lot of code.
You can turn it on and off, and it works on other applications. Worth a try, with the pros and cons in mind.
Here's how to do it for more recent versions of Mathematica (specifically, 9.0.1):
This answer is complementary to Ian's. Retinizer appears to work very well with Mathematica 9. It increases even the resolution of
Graphics, but not
To get a prettier view of a
Graphics3D, one can use the following function:
retinize[g_, n_: 2] := Image[Rasterize[g, "Image", ImageResolution -> n 72], Magnification -> 1/n]
Here's an example from the docs, processed like this:
The situation as far as I can guess (that's the operative word) is this: In order to supports Retina's high dpi, one has to compile the application using the Cocoa framework which has for long been the default application framework on Mac OS X anyway. Unfortunately, I don't think Mathematica does that. It uses the legacy Carbon framework. So in order to support Retina, they will probably have to rewrite a whole lot of front-end code.
By the way, this isn't just a display issue. The resolution of screen shots from Mathematica is also wrong. So if I paste a screen shot into
Preview (a high-dpi application) and save it there, the result looks especially blurry when you embed it in a web page (or upload to StackExchange, for that matter). So I now try to avoid taking screen shots and instead use
PNG inside Mathematica. I also have a script that repairs the resolution for pasting into my
Xemacs editor that I use to write web pages, but that's probably too specialized for this answer.
Retinizer is the only option to solve this, as in programming_historian answer. I just wanted to add that for version 22.214.171.124 of Mathematica the only way to "retinize" is to use Retinizer's "global mode": launch Retinizer and pres Alt-Cmd-G. Retinizing by dropping Mathematica icon on Retinizer doesn't work for 126.96.36.199.