| Name | Desciption | Data Type |
|---|---|---|
| ApproxEqFix | Tests whether two values are within a specified variance of each other. Only two return values; 1 = True, 0 = False | Integer |
| Comp1Fig | First number value | Double |
| Comp2Fig | Second number value | Double |
| Permvar | Permitted variance | Double |

No separate error values. Any error (e.g. posting a non-numeric value in one of the function's arguments) will generate a return value of 0 or False.