about the precision we will see later, but don't tell me that I have to wake up the main controller to do a basic sqrt(). Otherwise, what is the purpose of these ULP stuff, if you can't do basic operation. Better to go with an ATTiny then, right ?
Still, I would like still to fix the issue with math ...

Hello,
despite post has 2 years, I faced same issue. in the ULP co-processor, I manage to use some math function with a constant but not with a variable "sqrt(4) is ok but sqrt(myvariable) is creating compilation error : undefined reference to `sqrt'.
This works perfectly on main program, just not ...

Hello,

I try to implement some ULP functions with an ESP32S3 RISCV with IDF in PlatformIO, and I struggle to fix an issue with functions from standard math library (like sqrt(), pow(),...). Actually it works, if I do a sqrt(2) with a fix number, but does not if I do a sqrt(myvariable).
I get the ...

Hello, I am struggling since days on exact same issue. Where you able to find the solution to make it work ?