Question

Matlab code for this problem.

1[35pl Write a user-defined MATLAB function that determines the unit vector in the direction of the line that connects two points (A and B) in space. For the func- tion name and arguments, use n = unitvec (A,B). The input to the function are two vectors A and B, each with the Cartesian coordinates of the corre- sponding point. The output is a vector with the components of the unit vector in the direction from A to B. If points A and B have two coordinates each (they are in the xy plane), then n is a two-element vector. If points A and B have three coordinate each (general points in space), then n is a three-element vec- tor. Use the function to determine the following unit vectors: (a) In the direction from point (1.2.515) to point (12. 15) (6) In the direction from point (-10. 4. 2.5) to point (13.6. -5) code results

Answer 1

Function file: (unitvec.m)

function n=unitvec(A,B)
% direction of the vector
n=B-A;
% unit vector in the direction
n=n/(sqrt(sum(n.*n)));
end

Screenshot:

1 2 3 function n=unitvec(A,B) direction of the vector n=B-A; unit vector in the direction n=n/ (sqrt (sum(n.*n))); end 4 5 6 -

Save the above program as unitvec.m in the working directory.

Question (a):

Script file:

clear
clc
A=[1.2 3.5];
B=[12,15];
n=unitvec(A,B)

Screenshot:

1 N 3 clear clc A=(1.2 3.5]; B=(12,15]; n=unitvec(A,B) 4 5

Save the above program in the working directory and execute it.

Result:

n = 0.6846 0.7289 fx >>

Question (b):

Script file:

clear
clc
A=[-10,-4,2.5];
B=[-13,6,-5];
n=unitvec(A,B)

Screenshot:

1 2 نما clear clc A=[-10,-4,2.5]; B=[-13,6,-5); n=unitvec (A,B) 4 5 -

Save the above program in the working directory and execute it.

Result:

n = -0.2334 0.7779 -0.5834 fx >

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