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RE: Putting some numbers on things - cjfp - 19-02-2012 11:24pm
(19-02-2012 11:13pm)PhilSkill Wrote: I'm now using a 3rd order polynomial fit which gives a better representation
Bet you have the women at your feet at parties
RE: Putting some numbers on things - edgedata - 19-02-2012 11:27pm
Anyone else looked up 3rd order polynominal fit on wiki and now has a sore head?
Apparently
Let's start with a first degree polynomial equation:
y = ax + b
This is a line with slope a. We know that a line will connect any two points. So, a first degree polynomial equation is an exact fit through any two points with distinct x coordinates.
If we increase the order of the equation to a second degree polynomial, we get:
y = ax^2 + bx + c
This will exactly fit a simple curve to three points.
If we increase the order of the equation to a third degree polynomial, we get:
y = ax^3 + bx^2 + cx + d
Obvious really
??:
RE: Putting some numbers on things - cjfp - 19-02-2012 11:33pm
So why hasn't philskill used a 4th polynomial fit? Slacker.
RE: Putting some numbers on things - edgedata - 19-02-2012 11:37pm
Because he is only plotting three variables ?
Just a guess as I really haven't the foggiest idea.
RE: Putting some numbers on things - PhilSkill - 20-02-2012 12:29am
You know girls, you havent experienced anything till you've had it fitting perfectly to the 3rd order!
4th order would probably loop back on itself, and form a threatening looking noose.
RE: Putting some numbers on things - DefLeppard - 20-02-2012 03:04am
(18-02-2012 07:46pm)ChuckieB Wrote: 6492XX
Built 2nd Feb, at the dealer 10 Feb. Almost Cousins!
Hey Cous! You are welcome to come and visit anytime!Unfortunately for me, you will have your baby weeks before me - mine is currently somewhere in the North Atlantic!
RE: Putting some numbers on things - PhilSkill - 20-02-2012 03:00pm
(20-02-2012 03:04am)DefLeppard Wrote: Unfortunately for me, you will have your baby weeks before me - mine is currently somewhere in the North Atlantic!
I hope it's not actually IN the North Atlantic... but ON it
RE: Putting some numbers on things - ChuckieB - 20-02-2012 03:04pm
(20-02-2012 03:00pm)PhilSkill Wrote: I hope it's not actually IN the North Atlantic... but ON it
.........And heading South hopefully!
RE: Putting some numbers on things - XFullFatTim - 20-02-2012 05:17pm
A few years ago I left somebody's new BMW 5 series Touring and Jaguar X type at the bottom of the South Indian Ocean somewhere about half way between Durban and Fremantle and down at 55 South when 25 containers decided to leap off the ship in bad weather.................. LR uses dedicated car carriers rather than containerships so your car is more likely to travel to Aus via either the Suez Canal and Singapore or Baltimore and the Panama Canal, the risk of bad weather in the South Indian Ocean causing damage due to cars breaking loose in the heavy rolling that happens down there is too great for car carriers to venture that far south
RE: Putting some numbers on things - PhilSkill - 20-02-2012 06:36pm
Was hoping you had a story Tim!