Bug introduced in 8.0 and fixed in 10.1.0

While playing with Scaled, I made a syntax error which caused a crash instead of an error message ...

Do you get the same ? (I have v.10.0.2, OS X 10.9.5.)

This is how I can reproduce that :

Let's define a graphic primitive (no crash here) :

p = Disk[{0., 0.}, Scaled[{0.2, 0.2}, 2.]]

(the syntax error is the second parameter of Scaled)

To crash, try to display the corresponding graphic :


It "works" also with Circle instead of Disk, and maybe with others ?

  • 1
    $\begingroup$ Confirmed in 10.0.2 under Windows 7. $\endgroup$
    – Mr.Wizard
    Jan 26, 2015 at 22:13
  • 1
    $\begingroup$ I can reproduce this on Windows 8.1 using Mathematica 8, 9, and 10. A syntax error should not lead to a crash. Please report this to [email protected]. $\endgroup$ Jan 26, 2015 at 22:13
  • 2
    $\begingroup$ Well that's interesting. I'll write it up in the morning. $\endgroup$
    – rcollyer
    Jan 26, 2015 at 22:23
  • 2
    $\begingroup$ @Sjoerd This does not crash Mathematica 7 so I guess I can mark this as introduced in 8.0. $\endgroup$
    – Mr.Wizard
    Jan 26, 2015 at 22:41
  • $\begingroup$ +1 for finding yet another way to induce instantaneous death LOL. $\endgroup$ Jan 26, 2015 at 23:57

1 Answer 1


To ensure that this does not remain unanswered, this was fixed for 10.1. So, now it returns an FE error, as expected:

enter image description here

Fix is confirmed on Mac OS, Windows, and Linux.


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