Trouble writing calculations / formulas not evaluating properly

To get started writing a new calculation:

1. Delete the 1+1 that's shown by default
2. To reference table data, start typing "lookup"

3. To reference an attribute, type a left bracket [ to see available attributes 

If a function isn't evaluating as expected, here are a few things to check:

1. Ensure that references to lookup tables are surrounded by quotation marks:

2. Ensure that references table names and columns are spelled correctly

NOTE: The references are not case sensitive