# With comma as decimal separator, how do you insert a period in the header/footer?

I have enabled comma as my decimal separator, which means that comma still acts normally and when pressing period it will be converted to a comma.

In the header I would like to make a period, so I insert a period and it looks like a period, however when I view the print preview, the period is converted to a comma.

How do I keep this from happening or is there a special period character that doesn't get converted to a comma?

Alternatively how can I make the header plain text, as this behaviour doesn't occur in plain text mode?

1. With header I mean the option you set with File > Printing Settings > Headers and Footers...
2. The setting to change the decimal separator was found in Mathematica under Preferences > Appearance > Numbers > Formatting > Decimal point character
A few questions to make your question a little bit more specific: 1. With "header" you mean the page header which you set with File>Printing Settings>Headers and Footers...`? 2. The setting of comma as decimal separator did you do that within Mathematica's preferences (tab Appearance/Numbers) or on OS level or both? 3. Do you press the period on your numeric keypad or on the main keyboard? –  Sjoerd C. de Vries Oct 23 '12 at 21:17