is it posible to use in quaternion functions?

there is probably a library for complex number maths. Guys ?

no processor supports such high level processing natively. ( in hardware)

but if want to do the math, the processor will do it.

double floating point precision is good enough for 99.99999% of all problems.

if you cant find a library, you would have to make your own math functions for the complex numbers

Some STM processors support double floating point natively and others don't.

they will all process your algorithms at differing speeds.

We had the RISC revolution late last century,

they were trying to shed instructions, to reduce complexity for higher yields.