Because the both are refer to the same point here. If K zeta to the point 1 then what will happen to my z where is equal to K log eta plus some constant a, which implies where as a L is unknown, I am willing to find L what will happen to zeta is equal to zeta if zeta is equal to one this is the point here and zeta is equal to one refers to 0 to z is 0 in scale and zeta is equal to 1 l n 1 is 0. So, this is L is equal to 0. Now, if I put this is by considering I have taken z is equal to 0 at zeta is equal to 1. Well suppose I take z is equal to I a, this point. Because this point will be I a and this point I am referring to minus 1 is equal to K l n minus 1 and l n minus 1 is K minus 1 is I by it implies K is equal to a by pi. And which implies this implies my z will be l is 0, K z by pi. So, z is equal to a by pi l n zeta, which implies zeta is equal to e to the power pi z by a. Now what will happen if I consider a particular flow?