hello, pow 2 did not like negative number. use "t f f" and "*" in order to compute the square of a number.
i correct 2 of your formula according to what i found in your link. they both gives the same result : 11805 the same value computed with your 2nd link gives 12210. for other value, it also look close. so i guess the difference is number precision. cheers c Le 06/06/2015 20:18, Max a écrit :
I tried to implement the Haversine formula in Pd which should give you the distance in km between two lat long coordinates. https://en.wikipedia.org/wiki/Haversine_formula http://www.movable-type.co.uk/scripts/latlong.html One huge obstacle is the imprecision of the 32bit floats, but even without that I can't get the formula to work. I kept 3 failed implementations in the test-case. http://rosettacode.org/wiki/Haversine_formula Could someone give me a hand please? _______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
loca.haversine-help.pd
Description: application/puredata
loca.haversine.pd
Description: application/puredata
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