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定点数据

非浮点值的高效逼近

定点数使用基于整数的编码方案来逼近实数。它们为底层系统硬件中不要求浮点支持的数值计算提供了一种高效的替代方法。通过调整编码方案，将计算精度的损失降至最低。

主题

Fixed-Point Data in Stateflow Charts
Define fixed-point data in Stateflow^® charts.
Fixed-Point Operations in Stateflow Charts
Use integer arithmetic to approximate real numbers.
Operations for Fixed-Point Data in Stateflow
Perform mathematical computations on fixed-point operands.
Handle Integer and Enumeration Overflow for Chart Data
Choose saturation or wrapping behavior for arithmetic overflows.

精选示例

Compare Fixed-Point and Floating-Point Computation in Mandelbrot Set

Compare Fixed-Point and Floating-Point Computation in Mandelbrot Set

Explore the difference between fixed-point numbers and floating-point numbers by computing the Mandelbrot set.

Bang-Bang 温度控制系统建模

Bang-Bang 温度控制系统建模

对一个调节锅炉温度的 Bang-Bang 控制系统进行建模。

Build a Low-Pass Filter by Using Fixed-Point Data

Build a Low-Pass Filter by Using Fixed-Point Data

Model a low-pass Butterworth filter that uses fixed-point arithmetic.