Representación numérica digital

Representación de números de punto fijo y punto flotante

En el hardware digital, los números binarios se representan como tipos de datos de punto fijo o de punto flotante. Comprender cómo se definen y representan los distintos tipos de datos en el hardware puede ayudar a seleccionar los tipos de datos adecuados para una aplicación.

Temas

General

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.

Punto fijo

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.
Números de punto fijo en Simulink
Tipo de datos de punto fijo y notación de escalado que se utiliza en Simulink^®.
numerictype of Fixed-Point Objects
Fields and settings for the numerictype 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.

Punto flotante

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.

Ejemplos destacados

View Fixed-Point Number Circles

Define unsigned and signed two’s complement integer and fixed-point numbers.

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