Unwanted space before greek letters

Hello, I want to use Greek letters on my plot labels, but using the command \psi creates an unwanted space in front of the Greek letter, so from the command:

xlabel('Radial distance [r(\psi)]')

I get a spacing between the first bracket '(' and the Greek letter '\psi'. I have also tried the commands

xlabel('Radial distance [r({\psi})]')

xlabel('Radial distance [r(\{psi})]')

xlabel('Radial distance [r($\psi$)]')

But with no luck. Any help will be appreciated. Thank you.

[Mischa Kim]

Which MATLAB release are you working with? It works just fine in R2013b.

[Walter Roberson]

Might depend upon the OS or on the font ?

[Jacco]

I have the same issue with R2015a and R2014b on two different Linux machines. The plot window shows up fine, but when I saveas PDF extra white spacing is attached in front of my greek symbols.

Answer 1

[the cyclist]

Can you share a screenshot? Mine looks fine:

[OS X; R2014b]

Answer 2

[Oliver Grimm]

The problem persists in R2018b (Linux) for eps export: the label is correct in the Matlab figure window, but the exported figure has a large, extra space in front of the mu.