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The function F(x) is a polynomial of degree 3.
And given the values of x and y = F(x) mod 251
it is required to reconstruct the polynomial F(x)
x is finite and has only 3 discrete values
how could we solve this using lagrange interpolation
 
hi
if i have used modulo function in the polynomial then how can i use lagrange interpolation
Posted 31-Dec-12 3:20am
Edited 31-Dec-12 22:02pm
v3
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Solution 1

Start from here and it should help you out: Matlab - Lagrange Interpolation Polynomial[^]
General info about the same: Wiki Lagrange polynomial[^]
 
Try out!
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Comments
terasajan at 2-Jan-13 3:09am
   
hi
if i have used modulo function in the polynomial then how can i use lagrange interpolation
Sandeep Mewara at 2-Jan-13 4:08am
   
Did you go through the MATLAB mathwork's link?
terasajan at 3-Jan-13 4:17am
   
thank u sir
yes i did went through the links
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Solution 2

hi
if i have used modulo function in the polynomial then how lagrange interpolation function can be used
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Comments
Richard MacCutchan at 1-Jan-13 5:23am
   
Do not post questions as Solutions. If you have question to ask someone who has replied then use the "Have a Question or Comment" link below their answer.

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