Extensions.Quantities.Negation

Classification

Name	Negation
Short Description	Returns the value of the numeric quantity with inverted sign
Class	Operations
Extension	OTX Quantities extension
Group	Overloading semantics
Exceptions	-
Checker Rules	-
Standard Compliant	Yes

OTL Syntax

QuantityVariable = Negate(QuantityTerm);

Description

When the negation is computed from a Quantity, the display unit of the resulting Quantity should be set to the SI base unit corresponding to the physical dimension of the original Quantity. Furthermore, the display precision of the resulting Quantity shall be equal to the display precision of the original Quantity. First the computation to SI Unit is done, and secondly the math function is calculated.

Example: -(-10°C) transform to SI -(263 K) Result: -263 K

Return Value

The Term returns the value, see table below.

In OTX, Terms are categorized according to its return data type!

Data Type	Description
Quantity	The result of the negation of a numeric quantity (NumericQuantity)

Properties

Name	Data Type	Class	Default	Cardinality	Description
QuantityTerm	Quantity	Term	-	[1]	The numeric Quantity term whose negation shall be returned

OTL Examples

/// Local Declarations

Quantities.Quantity Quantity;

/// Flow

Quantity = Negate(-10 [@Unit, "BL_DataLibraMIB.odx", "°C"]);

See also

Conversions
Addition
Subtraction
Multiplication
Division
Modulo
Absolute Value
Relational Operations
Other Operations