Find n-vector from the rotation matrix (direction cosine matrix) R_EL

R_EL2n_E(R_EL)

Arguments

R_EL

Rotation matrix (direction cosine matrix) (no unit)

Value

n-vector decomposed in E (3x1 vector) (no unit)

References

Kenneth Gade A Nonsingular Horizontal Position Representation. The Journal of Navigation, Volume 63, Issue 03, pp 395-417, July 2010.

See also

n_E2R_EN, R_EL2n_E and n_E_and_wa2R_EL.

Examples

R_EL <- matrix( c(-1, 0, 0, 0, 1, 0, 0, 0, -1), nrow = 3, ncol = 3, byrow = TRUE) R_EL2n_E(R_EL)
#> [1] 0 0 1