[libre-riscv-dev] [Bug 208] implement CORDIC in a general way sufficient to do transcendentals

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Fri Apr 17 20:56:05 BST 2020


https://bugs.libre-soc.org/show_bug.cgi?id=208

--- Comment #31 from Jacob Lifshay <programmerjake at gmail.com> ---
(In reply to Luke Kenneth Casson Leighton from comment #30)
> it's sorted now however i just found this:  python3-mpmath
> it's a pure-python-only arbitrary-precision FP math library.  it doesn't
> say whether it's IEEE754 compliant however.

ieee754 compliant basically means the results are rounded properly to an
ieee754 binary/decimal format, mpmath is instead designed to give as many
digits of accuracy as you want, it's designed to emulate mathematical
real/complex numbers rather than ieee 754 arithmetic.

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