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gnu math library about stm32f4

Question asked by ctc.ctc on Apr 19, 2013
Latest reply on Apr 19, 2013 by fm
I want to use stm32f4 to control my accelerometer. And I need to use the acceleration value to calculate the rotation degree. So I need sqrt() and acos() function from math.h . I used gnu tool with st-link to finish my work before. But this time, I can't find math.h from stm32f4-firmware libary. I try to implement the sqrt(), acos() function by myself. But I think there's too much deviation from my function. How can I do to find the standard math.h to use in stm32f4? Thanks

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