On 11/02/2012 09:52 PM, Alex Shinn wrote:
> On Sat, Nov 3, 2012 at 1:43 PM, Per Bothner <p...@bothner.com> wrote:
>> R6RS has a 2-operand version of the log function:
>>
>> (log zi zii) computes the base-zii logarithm of zi.
>>
>> This function is not in the latest R7RS draft that I've seen,
>> which means it should be listed in the "Incompatibilities with
>> the main R6RS document" section of the NOTES.
>
> The two argument log function has already been added.
In that case, I guess I need to implement it ...
Is there a recommended reference implementation?
IIRC mathematically (log a b) is (/ (log a) (log b)),
but that might not provide the best accuracy.
I recall there is a library implementation effort with
suggested or reference implementations of various
functions and macros. Is there or should there be a
link to this from the R7RS specification? Or perhaps
from scheme-reports.org?
--
--Per Bothner
p...@bothner.com http://per.bothner.com/
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