This is a second implementation of the function sw_spheroid() which is used to compute the spin-weighted spheroidal wave function associated with a quasinormal ringdown mode of a Kerr black hole with a certain (specified in the code) dimensionless angular momentum parameter. To invoke the program, type:
spheroidfor the desired (integer) values of , , and ( and ) of the desired mode. The output is three columns of data: the first column is the independent variable between and , the second column is the value of the real part of , and the third column is the value of the imaginary part of . Figure depicts the output for the spin-weighted spheroidal wave function .