A formula can contain several statements, blank lines and comment lines. Example:
x = 2 # This a comment line y = 2 = x + y
Spaces are allowed inside statements.
Statements must end with a newline.
All statements except last one are used to assign to local variables the values of intermediate expressions.
Last statement is the result of the formula. It must start with '='.
Some identifiers are reserved: TRUE, FALSE and all references to table cells: A1, B2, DC273, etc. Do not use reserved identifiers for the names of your local variables. Example: x=2 is OK, x1=2 is not.