Question

In: Civil Engineering

Write a function script DirCos.m that takes a vector (any row or column array) as the...

Write a function script DirCos.m that takes a vector (any row or column array) as the argument and returns the direction cosines for that vector. This is for a MatLab script

Solutions

Expert Solution

Consider a vector a.i + b.j + c.k, Where a,b,c are the direction magnitudes and i,j,k are unit functions.

This vector can be represented as <a   b   c>

Direction cosine of the vector are,

cos =

cos =

cos =

MATLAB CODE

for i=1:3
a(i) = input("Enter the value of vector : ");
v(i) = a(i)/sqrt(sum(a.^2));
end
fprintf("\n Given vector is \n");
disp(a)
fprintf("Direction cosine of the given vector is \n");
disp(v)

OUTPUT EXAMPLE

>> DirCos

Enter the value of vector : 1
Enter the value of vector : -2
Enter the value of vector : -3

Given vector is
   1 -2 -3
Direction cosine of the given vector is
   0.26726 -0.53452 -0.80178

THANKS

Ally Wells answered 1 year ago
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