  This paper exploits the power of the Cayley-Dickson algebra to generate
stationary rotating black hole solutions in one fell swoop. Specifically, we
derive the nine-dimensional Myers-Perry solution with four independent angular
momenta by using the Janis-Newman algorithm and Giampieri's simplification
method, exploiting the octonion algebra. A general formula relating the
dimension of the Cayley-Dickson algebra with the maximum number of angular
momenta in each dimension is derived. Finally, we discuss the cut-off dimension
for using the Cayley-Dickson construction along with the Janis-Newman algorithm
for producing the rotating solutions.
