Rappresentazione digitale dei numeri
Rappresentare i numeri in virgola fissa e in virgola mobile
Nell'hardware digitale, i numeri binari sono rappresentati in virgola fissa o in virgola mobile. Comprendere come vengono definiti e rappresentati i diversi tipi di dati nell'hardware può aiutare a scegliere i tipi di dati più adatti per l'applicazione.
Argomenti
Generale
- Physical Quantities and Measurement Scales
Select measurement scales to represent physical quantities with fixed-point data types. - Vantaggi dell’hardware in virgola fissa
Scoprire i vantaggi in termini di memoria, velocità e costi derivanti dall'utilizzo di hardware con tipi di dati in virgola fissa. - 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.
Virgola fissa
- Tipi di dati in virgola fissa
Scoprire come i numeri in virgola fissa vengono rappresentati come parole binarie. - 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 thenumerictypeobject. - 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.
Virgola mobile
- 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.
Esempi in primo piano
View Fixed-Point Number Circles
Define unsigned and signed two’s complement integer and fixed-point numbers.
