[add] notes on auto conversion of lowercase letters in formulas

DHTMLX · Nov 10, 2023 · 2051d1d · 2051d1d
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diff --git a/docs/functions.md b/docs/functions.md
@@ -6,7 +6,11 @@ description: You can learn about the formulas and functions of the DHTMLX JavaSc
 
 # Formulas and functions
 
-Starting from v4.0, the package of DHTMLX Spreadsheet includes a set of predefined formulas that can be used for different types of calculations of strings and numbers. The formulas are compatible with Excel and Google Sheets.
+Starting from v4.0, the package of DHTMLX Spreadsheet includes a set of predefined formulas that can be used for different types of calculations of strings and numbers. The formulas are compatible with Excel and Google Sheets. 
+
+:::note
+Lowercase letters in formulas are automatically converted to upper case. 
+:::
 
 <iframe src="https://snippet.dhtmlx.com/wux2b35b?mode=result" frameborder="0" class="snippet_iframe" width="100%" height="600"></iframe>
 

diff --git a/docs/work_with_cells.md b/docs/work_with_cells.md
@@ -23,6 +23,10 @@ description: You can learn about the work with cells in the documentation of the
     - [built-in functions](../functions/), for example **=MAX(C46;D46)**
 - Press **Enter**.
 
+:::note
+Lowercase letters in formulas are automatically converted to upper case. 
+:::
+
 ## Inserting a hyperlink into a cell
 
 ### Adding a link