Hi,Burt Jordaan,
COBBE,Fourier analysis give us some decoding ,,COBBE fluctuation on a large scale IRRAS:(eV0).3%,if breaking the basic code on density fluctuation,and using Fourier math tech ,The second step will be adjusting this so used and abused zero and get finally to a pure trig as the first step,to establish a tan.
It is good to exchange with you,Truly Philippe martin.