Returns ratio of norms and signed angle between two vectors provided as four
numeric.
Usage
vecs_param(r1, i1, r2, i2)
Arguments
r1
the 'real' part of the first vector, i.e. difference in
x-coordinates.
i1
the 'imaginary' part of the first vector, i.e. difference in
y-coordinates.
r2
the 'real' part of the second vector, i.e. difference in
x-coordinates.
i2
the 'imaginary' part of the second vector, i.e. difference in
y-coordinates.
Value
A list with two components: r.norms the ratio of (norm of
vector 1)/(norm of vector 2) and d.angle the signed angle 'from' the
first 'to' the second vector.