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Does anybdoy knows if the Prime still relies on Cordic or uses a math coprocessor (which itself may as well rely on cordic...)?

The numeric math library is essentially the same BCD math library from the 48 series. So yes.

The CAS however uses binary and I don't know exactly what Bernard does there.

The ancient ARM9 processor series doesn't have floating-point acceleration like, say, the Cortex-A series does.

Floating point arithmetic in the CAS is using the double format representation (truncated to 48 bits mantissa) and the standard libm/libstdc++ functions (except for a few special functions).

Thank you all for quick and detailed answers!

Hello

(01-28-2014 05:39 PM)debrouxl Wrote: [ -> ]The ancient ARM9 processor series doesn't have floating-point acceleration like, say, the Cortex-A series does.

Incorrect, some ARM9 do, and some Cortex-A do not...
but in our case, we do not...

However, the ARM FPU does not integrate sin/cos anyway... so the conversation is moot :-) ARM FPU only have +, -, *, / and sqrt...

Cyrille