Perhaps I'm doing something wrong or using the library outside of its 
intended purpose, but I found that this library doesn't handle Muller's 
Recurrence correctly. For those not familiar, Muller's Recurrence is 108 - 
(815-1500/z)/y

https://play.golang.org/p/sePTgjZzHeY

See 
https://latkin.org/blog/2014/11/22/mullers-recurrence-roundoff-gone-wrong/

On Sunday, January 26, 2020 at 8:46:16 AM UTC-8, Robert Engels wrote:
>
> Which is exactly what github.com/robaho/fixed and many others do!
>
> On Jan 26, 2020, at 10:34 AM, Michael Jones <michae...@gmail.com 
> <javascript:>> wrote:
>
> 
> ...thus the virtue of scaled integers. scaling by 100 makes cents whole, 
> scaling by 10000*100 gives four decimal places beyond that. There is 
> nothing bad about floating point despite the reputation, it's just not the 
> number system from algebra; nor is binary floating point the same as 
> decimal floating point. The problems all start with false presumptions.
>
> On Sun, Jan 26, 2020 at 8:20 AM Robert Engels <ren...@ix.netcom.com 
> <javascript:>> wrote:
>
>> Just an FYI, often that is not correct. Many financial systems require 
>> fractional pennies due to the volume of transactions. Think about taxing 
>> stock exchanges.... the pennies add up quickly at any tax rate, so they use 
>> fractional pennies to reduce the size of the error bucket. 
>>
>> On Jan 26, 2020, at 8:50 AM, Pat Farrell <pat2...@gmail.com <javascript:>> 
>> wrote:
>>
>> 
>> never use floating point if you are trying to represent money, say 
>> dollars and cents or decimal values of the euro.
>> Store the money as integer number of pennies.
>>
>> -- 
>> You received this message because you are subscribed to the Google Groups 
>> "golang-nuts" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to golan...@googlegroups.com <javascript:>.
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/golang-nuts/cc852ce3-6f88-40fd-8b19-877c76deec10%40googlegroups.com
>>  
>> <https://groups.google.com/d/msgid/golang-nuts/cc852ce3-6f88-40fd-8b19-877c76deec10%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>>
>> -- 
>> You received this message because you are subscribed to the Google Groups 
>> "golang-nuts" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to golan...@googlegroups.com <javascript:>.
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/golang-nuts/AF9827F5-C849-4F4E-8229-005D6C9A0E03%40ix.netcom.com
>>  
>> <https://groups.google.com/d/msgid/golang-nuts/AF9827F5-C849-4F4E-8229-005D6C9A0E03%40ix.netcom.com?utm_medium=email&utm_source=footer>
>> .
>>
>
>
> -- 
>
> *Michael T. jonesmichae...@gmail.com <javascript:>*
>
>

-- 
You received this message because you are subscribed to the Google Groups 
"golang-nuts" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to golang-nuts+unsubscr...@googlegroups.com.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/golang-nuts/46cadc14-9c8e-4c3a-9c6b-d0af7b621061%40googlegroups.com.

Reply via email to