xprod: Compute Cross Product
In ptm: Analyses of Protein Post-Translational Modifications

Description Usage Arguments Details Value Author(s) Examples

Computes the cross product of two vectors in three-dimensional euclidean space.

1	xprod(...)

...

vectors involved in the cross product.

For each methionyl residue taking place in a S-aromatic motif, this function computes the aromatic residue involved, the distance between the delta sulfur and the aromatic ring's centroid, as well as the angle between the sulfur-aromatic vector and the normal vector of the plane containing the aromatic ring.

This function returns a vector that is orthogonal to the plane containing the two vector used as arguments.

Juan Carlos Aledo