OEGeom3DMatrixMultiply

OEGeom3DMatrixMultiply(accumulator: OEDoubleArray, add: OEDoubleArray) -> None
OEGeom3DMatrixMultiply(Product: OEDoubleArray, init: OEDoubleArray,
                       add: OEDoubleArray) -> None

Performs \(3x3\) matrix multiplication. The first form computes \(accumulator *= add\), and the second form computes \(Product = init * add\). All of the inputs are nine element \(3x3\) matrices.