Calculates the signed angle between two vectors.
VectorSignedAngle([Vector 1],[Vector 2])
Vector 1 is a pipe-bar delimited list representing the first vector (X|Y)
Vector 2 is a pipe-bar delimited list representing the second vector (X|Y)
|VectorSignedAngle("20|37","38|27")||26.2121847336299||Returns the signed angle between the two given vectors.|