how to generate a polynomial

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Sharen H
Sharen H on 24 Nov 2012
i have two matrix one is
s=[2 3
4 5]
other is
text = [3 5 6 7
3 4 5 6]
based on my threshold value i should form a polynomial
say for exam threshold is 2 my polynomial should be
P= s(1,1)*x^0 + text(1,1)*x^1
if threshold is 3 my polynomial should be
P= s(1,1)*x^0 + text(1,1)*x^1 + text(1,2)*x^2 i have to process for every
digit like this .... value from should be taken once but from text van be any
number of times based on threshold...
Thanks in advance ..i am not able to trace it out please help
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Azzi Abdelmalek
Azzi Abdelmalek on 24 Nov 2012
Edited: Azzi Abdelmalek on 24 Nov 2012
Then why t(2,1) is repeated?

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Accepted Answer

Azzi Abdelmalek
Azzi Abdelmalek on 24 Nov 2012
Edited: Azzi Abdelmalek on 24 Nov 2012
s=[2 3 ;4 5]
text = [2 3 4; 5 6 7; 4 5 6]
t=text.'
t=t(:)
th=3;
x=11
[n,m]=size(s)
c=1:th-1;
idx1=1;
idx2=th-1;
for k=1:n
for l=1:m
t1=t(idx1:idx2).'
P(k,l)=s(k,l)+sum(t1.*x.^c)
idx1=idx1+th-1
idx2=idx2+th-1
end
end
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Azzi Abdelmalek
Azzi Abdelmalek on 24 Nov 2012
Ok Walter, It's done
Sharen H
Sharen H on 25 Nov 2012
thanks a lot ....It works perfectly

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More Answers (2)

Azzi Abdelmalek
Azzi Abdelmalek on 24 Nov 2012
Edited: Azzi Abdelmalek on 24 Nov 2012
s=[2 3 ;4 5]
text = [3 5 6 7 3 4 5 6]
threshold=4;
x=11
c=1:threshold-1
P=s(1,1)+sum(text(c).*x.^c)
  2 Comments
Sharen H
Sharen H on 24 Nov 2012
the value of text should be incremented for s(1,2)
Azzi Abdelmalek
Azzi Abdelmalek on 24 Nov 2012
If threshold=3 what should be the result?

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Matt Fig
Matt Fig on 24 Nov 2012
Sharen, please fill in the blank and define the ranges:
P(m,n) = _________________________
(for m = 1:size(s,1) and n = 1:size(s,2)) <---- correct??

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