Altium Designer Documentation
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System Query Functions
Arithmetic Functions
ROUND
Created: September 05, 2015 | Updated: August 13, 2021
| Applies to versions: 15.1, 16.0, 16.1, 17.0, 17.1, 18.0, 18.1, 19.0, 19.1, 20.0, 20.1 and 20.2
Now reading version 20. For the latest, read: ROUND for version 21
Parent page: System Query Functions - Arithmetic Functions
Summary
Returns an integral number, whose value depends upon the nature of the parameter's numeric value:
- If that numeric value is an exact integer, the number returned has exactly the same value.
- If that numeric value is not an exact integer, the number returned is the integer which is closest in value to the parameter's numeric value. Positive numbers which are exactly midway between adjacent integers are rounded upwards, while negative numbers which are exactly midway between adjacent integers are rounded downwards.
Syntax
ROUND(X : Number / Numeric_String) : Number
Example Usage
ROUND(5.0)
Returns 5.
ROUND(5.33)
Returns 5.
ROUND(5.5)
Returns 6 (Rounded upwards).
ROUND(5.66)
Returns 6.
ROUND(-5.0)
Returns -5.
ROUND(-5.33)
Returns -5.
ROUND(-5.5)
Returns -6 (Rounded downwards).
ROUND(-5.66)
Returns -6.