nan() Function Share Share via LinkedIn Reddit Email Copy Link Print On This Page Function nan() Constant number representing Not A Number, generally used for comparison to the result of mathematical operations with invalid inputs. This is equivalent to a decimal (floating point) null, but nan() is provided for more explicit usage in mathematical expressions. Returns Decimal Examples nan(100) returns null. Feature compatibility The table below lists this function's compatibility with various features in Appian. Feature Compatibility Note Portals Compatible Offline Mobile Compatible Sync-Time Custom Record Fields Compatible Can be used to create a custom record field that only evaluates at sync time. Real-Time Custom Record Fields Incompatible Custom record fields that evaluate in real time must be configured using one or more Custom Field functions. Process Reports Compatible Process Events Compatible Feedback Was this page helpful? SHARE FEEDBACK Loading...