Plotting a triangle from 3 3x1 matrices

Hello,

So I am trying to create a plot of a triabgle from three matrices a = [5; 8; 13]; b = [-5; 7; 21]; c = [12; -32; 0]; . I have used plot3 for every possible combination of vectors a, b, and c and well as every possible combination of their transposes and only seem to get two lines. Are there any other plotting methods I should try?

Thank you

[Matt J]

Are a,b, and c the vertices of the triangle?

[alex morris]

yes they are the vertices

[Matt J]

Then see my answer below, and tell us if it works.

Answer 1

[Matt J]

a = [5; 8; 13]; b = [-5; 7; 21]; c = [12; -32; 0];

V=num2cell([a,b,c,a],2);

plot3(V{:},'-o', MarkerFace='r'); 
xlabel x; ylabel y; zlabel z; grid on