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Bug introduced in 10.0.1 or 10.0.2 and fixed in 10.1.0


In version 10, if we plot with Sqrt in y-axis, and export to PDF, the square root disappears in the PDF file.

p = Plot[x, {x, 0, 1}, Frame -> True, 
  FrameLabel -> {"x", "\!\(\*SqrtBox[\(y\)]\)"}]

enter image description here

Export["test.pdf", p];

enter image description here

This does not happen in version 9.

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  • $\begingroup$ I can reproduce this on OS X, v 10.0.0. Can you report this problem to support at wolfram.com? $\endgroup$ – Szabolcs Jul 25 '14 at 21:16
  • $\begingroup$ @Szabolcs Thanks for reproducing it. I reported a bug. $\endgroup$ – Yi Wang Jul 25 '14 at 21:55
  • $\begingroup$ Present in 10.0.1 as well. $\endgroup$ – Sjoerd C. de Vries Sep 17 '14 at 15:16
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    $\begingroup$ Confirm it works in 9 but not in 10.0.2 (OS X 10.10.1). Incidentally if you want to use boxes in your labels it might be easier to do this {DisplayForm@SqrtBox["x"], DisplayForm@SqrtBox["y"]}. Related: mathematica.stackexchange.com/questions/69242/… $\endgroup$ – Mike Honeychurch Dec 18 '14 at 6:50
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    $\begingroup$ Fixed in 10.1.0 but now I use MaTeX anyway ... motivated precisely by these types of problems. $\endgroup$ – Szabolcs Apr 2 '15 at 2:54
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Looks like a bug. Stupid workaround:

Export["t:\\test.pdf", ImportString@ExportString[p, "EPS"]]

At the very least, there's a good chance that this would output reasonable vector graphics.

Or,

p = Plot[x, {x, 0, 1}, Frame -> True, FrameLabel -> {x, Sqrt[y]}]

The latter is what I usually do, anyway.

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  • $\begingroup$ Thanks a lot! Very clever workaround :) I actually also tried the second method. However, my actual y-axis is quite complicated and I don't want Mathematica to automatically format the equation for me. So a string is preferred. $\endgroup$ – Yi Wang Jul 25 '14 at 21:58
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The problem seems to be when the label is rotated. Check this:

Export["test.pdf", 
 ListPlot[{1, 2, 3}, Joined -> False, Frame -> True, 
  FrameLabel -> {Rotate["\!\(\*SqrtBox[\(x\)]\)", \[Pi]/2], 
    "\!\(\*SqrtBox[\(y\)]\)"}]]

however if you accept unrotated label, you can use:

Export["test.pdf", 
 ListPlot[{1, 2, 3}, Joined -> False, Frame -> True, 
  FrameLabel -> {"\!\(\*SqrtBox[\(x\)]\)", "\!\(\*SqrtBox[\(y\)]\)"}, 
  RotateLabel -> False]]

enter image description here

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