# Function - Scalar

Scalar functions return a single value (as opposed to an array).

Mathematics definition: Any function whose domain is a vector space and whose value is its scalar field.

Is the result of a scalar function on a numeric a change of scale ?

## Example

• LEN() - Returns the length of a text field
• ROUND() - Rounds a numeric field to the number of decimals specified
• NOW() - Returns the current system date and time
• TRIM() - Strip whitespace (or other characters) from the beginning and end of a text field

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