I am trying to do some calculations, but there are giving me really strange results. And I am not sure where to start looking for a solution.
I have a very simple calculation: Divide each element in the first row (or column) by the corresponding element in the second row (or column).
My input is attached;
and I would like to get the 71 values that you get when you divide bands(:,1) by bands(2,:).
I tried this:
spectralindex = bands(:,1)' ./ bands(:,2)' ;
bands2 = bands';
spectralindex2 = bands2(1,:) ./ bands2(2,:) ;
band1 = bands(:,1)';
band2 = bands(:,2)';
spectralindex3 = band1 ./ band2;
Looking at the data:
bands(1,1) = 0.0709 & bands(1,2) = 0.0275. If I take a calculator and divide these, I get 0.0709 / 0.0275 = 2.578. This is the outcome I am expecting to get from matlab too. A regular division of value 1 by value 2.
However the matlab outcome shows 2.5803 as outcome.
There probably is something very logical about this, with me making a conceptual mistake on how these calculations are done. But.. I cannot figure out what. Slightly baffled. Does anyone have an idea of what is going on?
