Unit vector from the vector

mean_speed_R, mean_speed_T and mean_speed_N are the components of mean_U0_vector. How should I express the unit vectors along R, T and N? Thanks a lot

I am writing the code as follows

mean_speed_R = mean(speed_R); %u_R_0
mean_speed_T = mean(speed_T); %u_T_0
mean_speed_N = mean(speed_N); %u_N_0
mean_U0_vector = mean_speed_R + mean_speed_T +mean_speed_N; % u_0 vector
magnitude_U0_mean_RTN = sqrt((mean_speed_R)^2 + (mean_speed_T)^2 + (mean_speed_N)^2);

Answer 1

[Voss]

Put the components in a vector:

mean_U0_vector = [mean_speed_R, mean_speed_T, mean_speed_N]; % u_0 vector

Then the unit vectors are [1 0 0], [0 1 0], and [0 0 1].

By the way, with mean_U0_vector being a vector, you can simplify the expression for magnitude_U0_mean_RTN:

magnitude_U0_mean_RTN = sqrt(sum(mean_U0_vector.^2,2));

[Ismita]

i.e, \hat{R} = mean_speed_R

\hat{T} = mean_speed_T

\hat{N} = mean_speed_N

Am I right?

[Ismita]

thank you

[Voss]

You're welcome!

In a legend or text object with latex interpreter, you can use \^{} syntax:

mean_speed_R = 10.5;
plot(1:10,mean_speed_R*ones(1,10))
legend(['\^{R} = ' num2str(mean_speed_R)],'Interpreter','latex','FontSize',14)

[Ismita]

Thank you so much :).

Is it possible to copy equations written in Matlab to latex directly? Thanks again.

[Voss]

You're welcome!

This has some links that might be useful:

https://www.google.com/search?q=copy+equations+written+in+Matlab+to+latex+directly