One for the mathematically gifted.
- Thread starter Banjo
- Start date
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GrasB
Veteran
- Location
- Nr Cambridge
No real hang up... just explaining how the GPS will almost always under-read. As I said I just take the average speed multiplied by time & GPS distance & average them out which I think gives probably the most accurate value I'll get. The funny one is when I get to work & find I've cycled 5-7 miles... erms no! point to point is something like 7.5 milesjimboalee said:
that's solved by letting the GPS 'settle' for about 20 min in on top of the water butt.
slowmotion
Quite dreadful
- Location
- lost somewhere
Valy said:
{Four Yorkshiremen, Monty Python...}
In them days, an A-Level was the equivalent of a PhD from Oxbridge, what with the current dumbing down an' all.
Since you ask...
D
OP
OP
Banjo
Fuelled with Jelly Babies
- Location
- South Wales
Thanks for all the replies
Re set it and its now spot on over the distance didnt remember to write down the old setting unfortunately so dont know how much it was out.
I like having a computer and prefer one that is reading accurately for map reading and just for the satisfaction of knowing how far and fast I have gone.I also do plodding along sightseeing type rides when it doesnt matter.Each to his own and whatever turns your crank as they say.
Re set it and its now spot on over the distance didnt remember to write down the old setting unfortunately so dont know how much it was out.
I like having a computer and prefer one that is reading accurately for map reading and just for the satisfaction of knowing how far and fast I have gone.I also do plodding along sightseeing type rides when it doesnt matter.Each to his own and whatever turns your crank as they say.
slowmotion
Quite dreadful
- Location
- lost somewhere
Valy said:
{shuffles about nervously}
1972
slowmotion
Quite dreadful
- Location
- lost somewhere
Valy said:Haha! That I got
Are you being serious though? Was there really a time where an A-level was looked at as a Degree and whatnot from Uni?
No, but I once saw some maths exam papers from the mid-Fifties, and they were rocket science compared to the stuff my daughter gets given. Anyway, the "dumbing down" business is a bit of a sensitive issue and this isn't P&L...
slowmotion
Quite dreadful
- Location
- lost somewhere
Valy said:
"What is P&L???????"
'Tis a dark and strange place hereabouts populated by Voldemorts. Innocent cyclists visit, and are never heard of again, a huge Black Hole, a gaping crevasse for the unwary, whole ships disappear. People mention the place in hushed whispers, as they do in Dracula films at the tavern when The Count's schloss becomes a topic.
Son, never visit the Politics and Life forum on CycleChat. I beg you....
slowmotion said:
Nah. Usually people talk about Maths problems in the cafe and then some physicist comes along and answers it. Unless of course you want to be tortured by Jimboalee and then you head for beginners or know how.
A-level Maths has always been a decent elementary grounding for the curious and non-curious. In some ways looking back over half a century of A-level or undergraduate papers there are similarities and differences. When I did Maths A-level there was enough material to do 4 A-levels in. There's just so much maths out there at the frontiers and you'll always get people saying "but isn't this group theory and dynamical systems stuff a bit easy".
To the topic though, I wouldn't worry too much about accuracy.
slowmotion
Quite dreadful
- Location
- lost somewhere
Marinyork, this is not P&L! I am however curious about your opinion on my grade D A-level solution for the original problem. If the "truth model" for the real distance covered over a 13.25 mile ride holds good, my best guess is that the adjustment I suggested might get me an A grade. I really would like that......
BentMikey
Rider of Seolferwulf
- Location
- South London
GrasB said:
Quoted for good sense.
Just get a Garmin. Then you know it's going to do the distance calcs the same on every bike.
And, you don't have to worry about wheel circ' either.
And, you can put it in an arm strap and go jogging; or walk up Cader Idris; or use it in the car to record where you've been.
And, you don't have to worry about wheel circ' either.
And, you can put it in an arm strap and go jogging; or walk up Cader Idris; or use it in the car to record where you've been.
