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-   -   N+/-(a number) (https://www.bikeforums.net/general-cycling-discussion/1154570-n-number.html)

Jon T 09-04-18 09:45 AM

N+/-(a number)
 
Please pardon my ignorance but what does N+/- (a number) mean? I've wracked my pea-brain trying to figure it out.
Thanks
Jon

kuroba 09-04-18 09:56 AM

Rule #12

zze86 09-04-18 09:58 AM

N = the number of bikes currently in your stable
+x = adding to the stable by x number of bikes
-x = subtracting from the stable by x number of bikes

The N+1 phrase is generally used when someone is unsure whether to keep a bike or replace it with another and has the connotation that having one more (or more variety) is better.

Milton Keynes 09-04-18 10:15 AM

N+1 until D-1.

Flip Flop Rider 09-04-18 10:22 AM

don't limit yourself to just one bike!

rumrunn6 09-04-18 02:38 PM

currently planning on replacing two with one, so that would be n-2+1

Cl904 09-04-18 02:45 PM


Originally Posted by Milton Keynes (Post 20546089)
N+1 until D-1.

d= number of bikes that causes a divorce.

Ghazmh 09-04-18 06:07 PM


Originally Posted by Cl904 (Post 20546706)

d= number of bikes that causes a divorce.

i wonder what that number is on average? My wife has slowly come around to accept the completely rational logic behind me needing a 7th bike.

ph0rk 09-04-18 06:16 PM

I like s-1 as it captures the universe of possible nasty outcomes beyond a mere divorce.

There is another, third, rarely used equation in this system to be balanced: s+1

Buy s another bike, s increments by one; ergo, s-1 also increments by one.

spinnaker 09-04-18 08:04 PM


Originally Posted by jon t (Post 20546029)
please pardon my ignorance but does n+/- (a number) mean? I've wracked my pea-brain trying to figure it out.
Thanks
jon

42

tagaproject6 09-04-18 08:12 PM

Get another bike.

veganbikes 09-04-18 08:18 PM

N-1 is not a mathematical equation that could exist. It is like saying I am going to douse myself in hydrochloric acid to get some dirt on my face. It doesn't work that way it would just kill you. I can understand replacing one so doing like an n-1+1 because then it is just a zero transaction and that is cool.

rumrunn6 09-05-18 07:05 AM


Originally Posted by Ghazmh (Post 20547042)
i wonder what that number is on average? My wife has slowly come around to accept the completely rational logic behind me needing a 7th bike.

oh she's a keeper! btw my limit was 13 incl. "frames" finally scaled it back to just 3 several years ago

Jon T 09-05-18 12:21 PM

Thanks all. Got it. I only have one with no plans to add or subtract any. So I guess I have N1 bikes?
Jon

ThermionicScott 09-05-18 01:53 PM


Originally Posted by Jon T (Post 20548628)
Thanks all. Got it. I only have one with no plans to add or subtract any. So I guess I have N1 bikes?
Jon

You have N bikes. :)

Cyclist0108 09-05-18 02:25 PM

Conventionally, the limits on a summation go from i to N.

http://www.columbia.edu/itc/sipa/mat...1/image008.gif

N+1 denotes the next item in the series.

Cyclist0108 09-05-18 02:26 PM


Originally Posted by ThermionicScott (Post 20548869)
You have N bikes. :)

Where N ≥ 3

according to Rule 12

livedarklions 09-05-18 02:33 PM


Originally Posted by veganbikes (Post 20547315)
N-1 is not a mathematical equation that could exist. It is like saying I am going to douse myself in hydrochloric acid to get some dirt on my face. It doesn't work that way it would just kill you. I can understand replacing one so doing like an n-1+1 because then it is just a zero transaction and that is cool.


You're wrong-- N-1 is a transient, unstable state that occurs when a person gets rid of 1 bike to make room for the 2 new bikes he/she is getting the next day, a mere waystation on the path to N+1, the only truly stable state.

veganbikes 09-05-18 08:30 PM


Originally Posted by livedarklions (Post 20548954)
You're wrong-- N-1 is a transient, unstable state that occurs when a person gets rid of 1 bike to make room for the 2 new bikes he/she is getting the next day, a mere waystation on the path to N+1, the only truly stable state.

Fair enough. I can dig that idea.

Machka 09-06-18 01:21 AM

With Rowan and me it's always N+2 ... because we each have to get a bicycle.

rumrunn6 09-06-18 08:01 AM

when I eat an ice cream sandwich, I always have to have more than one

devianb 09-06-18 07:16 PM


Originally Posted by rumrunn6 (Post 20550107)
when I eat an ice cream sandwich, I always have to have more than one

Copy that, although in my case it is those ice cream drumsticks. My equation is (N+1) ≤ (Sum N+1 Storage space).

Cyclist0108 09-06-18 07:47 PM

This has always puzzled me.

The number of bikes you should own is N+1. To prevent separation from the spouse or whatever, it is S-1.

So,

N+1 = S -1

solve for S:

S = N + 2

I think this means one should buy two more bikes.

veganbikes 09-06-18 08:00 PM


Originally Posted by wgscott (Post 20551457)
This has always puzzled me.

The number of bikes you should own is N+1. To prevent separation from the spouse or whatever, it is S-1.

So,

N+1 = S -1

solve for S:

S = N + 2

I think this means one should buy two more bikes.

One of my neighbors is an account so I feel pretty confident I am a math wiz and these figures check out!

jlmonte 09-06-18 11:06 PM


Originally Posted by veganbikes (Post 20551482)
One of my neighbors is an account so I feel pretty confident I am a math wiz and these figures check out!

If I may add...at work, where my desk chair wore out the carpet, there are Rocket Scientists who all ride recumbents. So, I double checked the math, I too am confident from an orthogonal subspace perspective, it checks out.


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