Science, Math, Mathematics, Linear Algebra, Python.
[2*u[2]-1,2*u[3]+1,v[2],v[3]] plt.quiver([u[0], u_bis[0], v[0], v_bis[0]], [u[1], u_bis[1], v[1], v_bis[1]], [u[2], u_bis[2], v[2], v_bis[2]], [u[3], u_bis[3], v[3], v_bis[3]], angles='xy', scale_units='xy', scale=1, color=[blue, blue, orange, orange]) # plt.rc('text', usetex=True) plt.xlim(-1.5,