PS 1可以包含其他shell和环境变量、置换命令运算(通过反引号)和特殊的字面值。
PS1 can contain other shell and environment variables, in-place command evaluation (via backquotes), and specialized literals. Here's an initial example.
说明：MF C实现灰度图像的各种点运算，如图像反色，窗口变换，线性变换，阈值变换，灰度均衡等。
MFC to achieve a variety of gray-scale image point operations, such as anti-color images, the window transform, linear transformation, threshold transform, gray balance, etc.
本文介绍了一种在微处理器中用二进制定点运算和查表相结合的方法简单实现三角函数和反三角函数运算的方法。
This paper introduces a computation method of trigonometric functions and inverse trigonometric functions in microprocessor by usr of combination binary fixed point operation with look-up table.
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