sharepoint 2013 library calculated column

Question

I want to create calculated column in SharePoint library, but get error

here is error that I got

and also here is column

Can someone tell me what I have done by mistake?

Answer 1

LEFT function:

LEFT returns the first character or characters in a text string, based on the number of characters you specify.

Syntax:

LEFT(text,num_chars)

Note:

Sometimes comma(,) does not work in formula (I am not sure but it is based on something language on your site). So in that case use semicolon(;) instead of comma(,).

Reference:

1. LEFT function.