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Useing Linear Interpolation to estimate the median.
Posted: September 27th, 2007, 9:45 am
by Nightma12
Explain please

My maths teacher is a b*tch and she said that were having an exam on monday and if i fail it shes going to drop me from maths :/
She didnt f*cking explain it properly....
Re: Useing Linear Interpolation to estimate the median.
Posted: September 27th, 2007, 3:47 pm
by raulperez
are we talking interpolation between two points or interpolation of a function?
Re: Useing Linear Interpolation to estimate the median.
Posted: September 28th, 2007, 2:10 pm
by Nightma12
Between two numbers
Re: Useing Linear Interpolation to estimate the median.
Posted: September 28th, 2007, 8:09 pm
by raulperez
well then, you just use the slope formula and generate a linear function
m=(y2-y1)/(x2-x1)
insert that value into the slope intercept form of a linear equation (y=mx+b) along with one of the points and solve for b
b=y-mx
and then generate a generic function using the m and b you've found
y=mx+b
then just substitute in any x between the two points and you'll get the value for y
that take care of your question?
Re: Useing Linear Interpolation to estimate the median.
Posted: September 28th, 2007, 8:17 pm
by farnagain
he made that sound way more complicated than it really was o.o - finding the equation of a line?
Re: Useing Linear Interpolation to estimate the median.
Posted: September 28th, 2007, 10:19 pm
by Cronambs
farnagain wrote:he made that sound way more complicated than it really was o.o - finding the equation of a line?
Well was little bit a trick question

, sadly i forgotten most my math from high school
Re: Useing Linear Interpolation to estimate the median.
Posted: September 29th, 2007, 2:29 am
by Nightma12
what the f*ck? 8O
I am given a whole list of numbers and I have to find the median of them useing interpolation :/
Re: Useing Linear Interpolation to estimate the median.
Posted: October 27th, 2007, 2:24 pm
by Starlite
Lee loves Sixth Form
