Need help with the MATLAB code for this question. Thanks! Use a centered differe

Question

Need help with the MATLAB code for this question. Thanks!

Use a centered difference approximation of O(Delta x2) to estimate the first derivative of f(x) = cos(x) at x = pi/6. (Start with step size Delta x = 1, then progressively divide the step size by a factor of 10 to demonstrate how the roundoff error becomes dominant as the step size is reduced. Plot the absolute value of the error for the range 10-25 Delta x 1 using a loglog plot (the command loglog works just like plot, but plots on a log-log scale, use help loglog for more details). What is the optimal value for Delta x?

Explanation / Answer

use colon operator for step size and also if you want to plot the cosine function then you can use the function directly in matlab and for ploting that function you use the plot command of matlab......thanks

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