I'm trying to figure out how to plot the forward approximation of the derivative of 1000^(x/17) at x=3.2 for h values of 0.01 to 5 in steps of 0.05. Here is what i have so far.
clear; close all; clc; delx = 0.05; x = 0.01:delx:5; y = 1000.^(x/17); fig = figure();set(fig,'color','white');plot(x,y,'linewidth',2);xlabel('x');ylabel('y');grid on; yforward = (y(2:end-1) - y(1:end-1))./delx;hold onplot(x(1:end)-delx/2,yforward,'r-','linewidth',2);
I'm getting an error that says matrix dimensions must agree. I also don't know how to plot the derivative at x = 3. Any help appreciated.
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