Matlab 7 for Engineers

I need help solving this:

Plot the estimate of the derivative dy/dx from the following data. do this by using forward, backward and central differences. compare the results.

x 0 1 2 3 4 5 6 7 8 9 10 y 0 2 5 7 9 12 15 18 22 20 17

Answer 1

[Kostas]

i think this topic in file exchange is what you need

http://www.mathworks.com/matlabcentral/fileexchange/11870-numerical-derivative-of-analytic-function

Answer 2

[Jan]

Look at Matlab's gradient function: It uses forward and backward differences at the edges and the central difference at the interior points.