Plotting a unit cell from a matrix

Hi everyone. I would like to plot a 3x3 matrix into a unit cell along with a 3-length vector. Each row of the matrix being a lattice vector. The matrix is like this:

Mcell = [ 4.85, 0.00, -0.02; 0.00, 8.41, -0.00; -1.67,-0.00, 4.87]

and the vector is like this:

Vect = [ 6.72e-01; 2.88e-01; -6.81e-01]

Please, how can I do it? Thank you very much from my heart for any suggestion. All the best.

[Rik]

I have trouble understanding what you want. Do you mean you want to plot a wire-frame box with Mcell as corner vectors? and then add a vector to that same plot?

If so, you can use the matrix Mcell to generate a coordinate sequence you can plot with plot3. Then simply use hold on and quiver3 to add the vector.

[Mma Kenya]

Hi Rik Wisselink,

first of all, thank you, thank you, thank you, millions times, I do not know how to thank you again. Indeed, that is exactly I want to do: plot Mcell into a unit cell then add the vector in the same 3D plot. I tried what you explained to me, and it is well what I was looking for. But, the only "oops" is that when using plot3(Mcell) I have this (cell.pdf), the unit cell having some zigzags inside. How can I fix it by removing this zigzag? Thanks again Wisselink. Thank you very much. I really appreciate.

[Rik]

Plot3 will plot a continuous line, so you need to trick it. You can do this by plotting over itself, so you have to return to a previous point. If this doesn't help, show a MWE, so we can reproduce your plot and fix your problem.

[Walter Roberson]

plot and plot3 break the line when they encounter nan or inf.