roty4 {GEOmap}

y-axis rotation matrix

Description

y-axis rotation matrix

Usage

roty4(vec)

Arguments

vec

vector of direction cosines

Details

Length of vector cannot be zero.

Value

Matrix for rotation

Author(s)

Jonathan M. Lees<[e-mail]>

References

Rogers and Adams

See Also

rotx4, rotdelta4

Examples

v = c(12,13,-4)

roty4(v)