Question

The problem below is a MATLAB question, please do it only Matlab, if you are not familiar with Matlab or not equipped with the program itself on your computer kindly leave it to someone who is.

Please show me the Matlab codes for these two parts of the problem, I need to put them in same (m.file) so please consider that.

Either you type the code or "preferably" you take a snip of your screen and post to teach me how to do it.

I thank you in advance, and here is the text of the problem ..............................................................................................................................................................................................................

Using no more than 2 lines of code

Write a Matlab function that computes the:

1. FD derivative for the first point

2. BD derivative for the last point

3. CD derivative for all the interior points

for any arbitrary function and any arbitrary X vector and Y vector.

Inputs: x_vector, y_vector (similar to the WS)

output: dydx (a single vector)

Answer 1

`Hey,

Note: Brother if you have any queries related the answer please do comment. I would be very happy to resolve all your queries.

clc
clear all
close all
deriv(0:0.1:1,sin(0:0.1:1))

function dydx=deriv(x_vector,y_vector)
dydx=[(y_vector(2)-y_vector(1))/(x_vector(2)-x_vector(1)) (y_vector(3:end)-y_vector(1:end-2))./(x_vector(3:end)-x_vector(1:end-2)) (y_vector(end)-y_vector(end-1))/(x_vector(end)-x_vector(end-1))]
end

Kindly revert for any queries

Thanks.