Length (1+e) and direction of principal axes of strain ellipsoid from finite, lagrangian/eulerian strain tensor E with eigenvalues lambda with (1+e) = sqrt(1+2*lambda) for a Lagranage strain tensor (default) (1+e) = sqrt(1-2*lambda) for a Euler strain tensor
Syntax
[fe,qe] = ellipsoid(E)Input
| E | strainTensor |
Output
| fe | directions of prinicpal axes of strain ellipsoid vector3d |
| qe | length of ellipse axes (1+e) |