[PD] haversine formula in Pd

[Cyrille Henry]

ahah!!
using -118.4 better than 118.4 also gives me the expected result. (2287.26)

all confusion came that i i was using the wrong set of value...


cheer
c


Le 08/06/2015 11:10, Lorenzo Sutton a écrit :
> Hi,
>
> On 07/06/2015 04:48, Max wrote:
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>> Merci Cyrille,
>>
>> in the formula the intermediate steps are quite small fractions and it
>> seems their precision is important.
>> In the test case the Pd implementation is 8917.74 km off the proper
>> result (2887.26). However I need a precision of about 1m.
>>
>> So I assume the haversine formula is not implementable in Pd at all?
>> (unless double precision will be there that is)
>
> I had a go at immplementing it in Pd Vanilla, with a few [expr], and the result seems the one expected... no?
>
> Lorenzo
>
>
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