Darstellung digitaler Zahlen
Darstellung von Festkomma- und Gleitkommazahlen
In digitaler Hardware werden binäre Zahlen durch Festkomma- oder Gleitkomma-Datentypen dargestellt. Wenn Sie wissen, wie die verschiedenen Datentyp definiert und in der Hardware dargestellt werden, können Sie die für Ihre Anwendung angemessenen Datentypen auswählen.
Themen
Allgemein
- Physical Quantities and Measurement Scales
Select measurement scales to represent physical quantities with fixed-point data types. - Benefits of Fixed-Point Hardware
Learn about the memory, speed, and cost benefits of using hardware with fixed-point data types. - Data Types and Scaling in Digital Hardware
Provides an overview of data types and scaling in digital hardware. - Supported Data Types
Data types supported for simulation and code generation.
Festkomma
- Fixed-Point Data Types
Learn how fixed-point numbers are represented as binary words. - Quantization
A weighted sum of bits represents the quantization of a real-world value. - Fixed-Point Numbers in Simulink
Fixed-point data type and scaling notation used in Simulink®. - numerictype of Fixed-Point Objects
Fields and settings for thenumerictype
object. - Fixed-Point Versus Built-in Integer Types
Differences between fixed-point data types and built-in integer data types in MATLAB®. - Fraction Lengths and Fixed-Point Numbers
Definitions for negative fraction length and fraction length greater than word length.
Gleitkomma
- Floating-Point Numbers
Representation and manipulation of floating-point numbers. - Scaled Doubles
Hybrids between floating-point and fixed-point numbers, which are stored by Fixed-Point Designer™ as doubles.