How to include math library?

Hello guys

I am new to FPGA, these days I'm trying to use NIOS II to do some digital current stuff,

And I found a "Libquadmath " documentation in the "nios2eds" folder which has something like complex data type and related complex functions,

However, I didn't found something like quadmath.h ...

Do you guys know where is this "libquadmath" library located at?

also how to include the library into the nios-ii eclipse?

I have successfully run some basic LED manipulations here, but still, i don't understand how this works

I try to read the nios- ii handbooks but I found myself too stupid to understand.

Thanks a lot!:eek:

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