When you create an expression for geospatial features, you can use the following types of functions:
| Type of function | Definition | Example |
|---|---|---|
| Mathematical Functions | Trigonometric, exponential, log, and other functions | Absolute value, modulus, remainder, square root, logarithmic operators, exponent |
| Numeric Functions | Functions that round off, truncate, or find the sign of a numeric value | Ceiling, Floor, Round, Truncate |
| Text Functions | Functions that operate on text strings | Concatenate, pad, or trim the left or right side of a string, specify the length or position of a string |
| Date Functions | Functions that operate on date values | Specify the current date, find the result of adding months to a date |
| Geometric Functions | Functions that operate on geometry | Calculates the length of lines, area and perimeters of polygons |
| Conversion Functions | Functions that convert strings from one format to another | Convert a numeric or text string to a double-precision, floating-point number. |