Arctan2 can be computed quickly on an FPGA using a lookup table. First, create a lookup table that maps input angles (in radians) to the corresponding Arctan2 output values. Then, use a block RAM to store the lookup table. Finally, use a DSP48E1 core to compute the Arctan2 function for each input angle. The following VHDL code illustrates how this can be done library ieee use ieee.std_logic_1164.all type angle is range 0 to 2*pi type arctan2_tbl is array(angle) of