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Engineering Error Questions Matlab Maple
Finding the coefficient vector in Matlab is very simple:
x = [0.53, 0.75, 1.22, 2.11, 3.25]'; y = [0.78, 0.81, 0.97, 1.28, 1.82]'; V = [x, ones(size(x))]; c = V \ log(y);
To plot the points and the best fitting curve, you can enter:
xs = (0:0.1:4)'; plot( x, y ) hold on plot( xs, exp(c(1)*xs + c(2)) );
Be sure to issue the command hold off if you want to start with a clean plot window.
Copyright ©2005 by Douglas Wilhelm Harder. All rights reserved.
