Hi Utsavi Bharuchwala,
from what I know, math.h doesn't have a function to support standard deviation, but it can support some other floating point calculation, for instance sqrt() -- Square Root Calculation.
to get floating point calculation working, we must set compiler tool:
Tool Settings->Librarian->Model->c9x
The EWL library has a smaller footprint but doesn’t support floating point calculations.
I suggest you refer this thread for more information:
Floating point calcs on Kinetis CPU CW 10.1 MQX 3.7
Have a great day,
Jennie Zhang
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