Main Content
Divide input by a constant and round to integer
Since R2021a
expand all in page
Libraries:
Fixed-Point Designer
Description
The Divide by Constant and Round block outputs the result of dividing the input by a constant and rounds the result to an integer using the specified rounding method.
The Divide by Constant and Round block uses an algorithm that is functionally similar to the Granlund-Montgomery-Warren Method. The division operation is computed via a multiplication by inverse, which generally results in better performance on embedded systems.
Ports
Input
expand all
X — Dividend
scalar | vector | matrix | N-D array
Dividend, specified as a scalar, vector, matrix, or N-D array.
Divide by Constant and Round does not support data types with word length greater than 128. Slope-bias representation is not supported for fixed-point data types.
Data Types: single | double | int8 | int16 | int32 | uint8 | uint16 | uint32 | Boolean | fixed point
Complex Number Support: Yes
Output
expand all
Y — Result of division and round operation
scalar | vector | matrix | N-D array
Result of division and round operation, returned as a scalar, vector, matrix, or N-D array.
Data Types: single | double | int8 | int16 | int32 | uint8 | uint16 | uint32 | Boolean | fixed point
Parameters
expand all
Denominator — Divisor
10 (default) | scalar
Divisor, specified as a positive, real-valued, finite scalar.
Programmatic Use
Block Parameter: Denominator |
| Type: character vector |
| Values: MATLAB® expression that evaluates to a positive, real-valued, finite fixed point or numeric value |
Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | Boolean | fixed point |
Default: '10' |
Rounding Method — Rounding method to use
Floor (default) | Ceiling | Nearest | Zero | Convergent
Rounding method to use, specified as one of these values:
Floor— Round to nearest integer in the direction of negative infinity.Ceiling— Round to nearest integer in the direction of positive infinity.Nearest— Round to the nearest integer. Ties are rounded to the nearest integer in the direction of positive infinity.Zero— Round to the nearest integer in the direction of zero.Convergent— Round to the nearest integer. Ties are rounded to the nearest even integer.
Programmatic Use
Block Parameter: RndMeth |
| Type: character vector |
Values: 'Floor' | 'Ceiling' | 'Nearest' | 'Zero' | 'Convergent' |
Default: 'Floor' |
Extended Capabilities
C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.
Slope-bias representation is not supported for fixed-point data types.
Version History
Introduced in R2021a
MATLAB Command
You clicked a link that corresponds to this MATLAB command:
Run the command by entering it in the MATLAB Command Window. Web browsers do not support MATLAB commands.
Select a Web Site
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Americas
- América Latina (Español)
- Canada (English)
- United States (English)
Europe
- Belgium (English)
- Denmark (English)
- Deutschland (Deutsch)
- España (Español)
- Finland (English)
- France (Français)
- Ireland (English)
- Italia (Italiano)
- Luxembourg (English)
- Netherlands (English)
- Norway (English)
- Österreich (Deutsch)
- Portugal (English)
- Sweden (English)
- Switzerland
- United Kingdom (English)
Contact your local office
