Difference between revisions of "Extensions.Quantities.Subtraction"
Jump to navigation
Jump to search
| Line 12: | Line 12: | ||
This is a term which as a result of the subtraction of two numeric values (is NumericQuantity) returns with respect to their units. | This is a term which as a result of the subtraction of two numeric values (is NumericQuantity) returns with respect to their units. | ||
| − | * When '''Quantity''' values are subtracted, the physical dimensions of the display unit of all '''Quantity''' operands | + | * When '''Quantity''' values are subtracted, the physical dimensions of the display unit of all '''Quantity''' operands will be identical. |
| − | * If scalar operands exist, they | + | * If scalar operands exist, they will be interpreted as normalized values according to the physical dimension of the '''Quantity''' operands. This allows e.g. the addition of 2 km - 1 m - 11 which will result in a '''Quantity''' of 1988 m. |
| − | * The display unit of the resulting '''Quantity''' | + | * The display unit of the resulting '''Quantity''' will be set to the SI base unit corresponding to the '''Quantity''''s physical dimension. Furthermore, the display precision of the resulting '''Quantity''' will be the maximum of the display precisions of the operands. |
{{TermReturnValue| [[Extensions.Quantities.Quantity|Quantity]] | Result of the subtraction of two numeric variables (NumericQuantity)}} | {{TermReturnValue| [[Extensions.Quantities.Quantity|Quantity]] | Result of the subtraction of two numeric variables (NumericQuantity)}} | ||
| Line 35: | Line 35: | ||
/// Flow | /// Flow | ||
| − | // The assignment below | + | // The assignment below will have the returned value: 1988 m (1988 [@Unit, "BL_DataLibraMIB.odx", "m"]) |
Quantity1 = (2 [@Unit, "BL_DataLibraMIB.odx", "km"] - 1 [@Unit, "BL_DataLibraMIB.odx", "m"]) - 11; | Quantity1 = (2 [@Unit, "BL_DataLibraMIB.odx", "km"] - 1 [@Unit, "BL_DataLibraMIB.odx", "m"]) - 11; | ||
</syntaxhighlight> | </syntaxhighlight> | ||
Latest revision as of 03:13, 13 September 2019
Contents
Classification
| Name | Subtraction |
| Short Description | Subtraction of two numeric variables |
| Class | Operations |
| Extension | OTX Quantities extension |
| Group | Overloading semantics |
| Exceptions | InvalidConversionException |
| Checker Rules | - |
| Standard Compliant | Yes |
OTL Syntax
QuantityVariable = QuantityTerm - NumericTerm;
QuantityVariable = NumericTerm - QuantityTerm;Description
This is a term which as a result of the subtraction of two numeric values (is NumericQuantity) returns with respect to their units.
- When Quantity values are subtracted, the physical dimensions of the display unit of all Quantity operands will be identical.
- If scalar operands exist, they will be interpreted as normalized values according to the physical dimension of the Quantity operands. This allows e.g. the addition of 2 km - 1 m - 11 which will result in a Quantity of 1988 m.
- The display unit of the resulting Quantity will be set to the SI base unit corresponding to the Quantity's physical dimension. Furthermore, the display precision of the resulting Quantity will be the maximum of the display precisions of the operands.
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 | Result of the subtraction of two numeric variables (NumericQuantity) |
Properties
| Name | Data Type | Class | Default | Cardinality | Description |
| QuantityTerm | Quantity | Term | - | [1..*] | Quantity values are subtracted |
| NumericTerm | Numeric | Term | - | [0..*] | Numeric values are subtracted |
OTL Examples
/// Local Declarations
Quantities.Quantity Quantity1;
/// Flow
// The assignment below will have the returned value: 1988 m (1988 [@Unit, "BL_DataLibraMIB.odx", "m"])
Quantity1 = (2 [@Unit, "BL_DataLibraMIB.odx", "km"] - 1 [@Unit, "BL_DataLibraMIB.odx", "m"]) - 11;See also
Conversions
Addition
Multiplication
Division
Modulo
Absolute Value
Negation
Relational Operations
Other Operations
