PB_BI (5/12/2015)
Generally it's polite to provide a little bit of context when posting questions on here.The error is probably the comma at the start of the expression ("0,01" instead of "0.01").
Here is a link to an online typing course to mitigate these sort of typo issues in the future: http://www.typing-lessons.org/
Tnx did for get that 🙂