This questions concerns the number format for custom number fields. 

I'd like to create a number field in which I can input and view a numeric value in English scientific notation. For example 3E6, 5.91E-6 or 200.84E-1, which mean the numbers 1000000, 0.00000591, and 20.084. These numbers will be used in other fields for calculations.

For my German localization settings, I discovered that the number field can 

• hold a 5.9E-6 which is correctly used in calculations
• when I enter 5,9E-6 (German language settings) and 
• displays 0

Is there a way to bring consistency to it? I'd like to have it in the 5.9E-6 format.