- Nov 12, 2017
which post 12 you mean ?
View attachment 29234I can't define it.
I wrote how it supposed to be if we write it as an infinite summation.
we can't write this series as infinite series.
it's like this one in this photo , it's the minus side of this series and it's define for negative integers.
But that's not what you put into WA! This has x+1, ... in the denominators, not x-1, ... as you showed.I see
and yes the sign is ulternate for negative integers side.
my post here is about if we but minus integer in the positive side of the equation.
for example if you put x=-5 in this positive side equation
View attachment 29254
you will get the answer having ln(2) according to wolfram language !!
why is that happen I don't know .