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在Msp432p401中，CCS7.4中如何选用 ARM 公司提供的，采用单精度浮点数优化的三角函数库，以避免由普通的数学函数库引入的双精度浮点数运算
The Code Composer Studio (CCS) libraries are provided in easy to use archive files, QmathLib.a and IQmathLib.a. The archive files should be used with projects in place of any .lib files. When linking, the archive file will select the correct library based on CPU, memory and data model compiler
settings.
To add a library to an existing CCS project, simply navigate to the device directory under IQmathLib/libraries/CCS and drag and drop the QmathLib.a or IQmathLib.a file to the CCS project. When prompted select "Link to files" and you are done!
