y=(ln ((x/m)-as)/r²
=> r²y=ln((x/m)-as)
=> rry=ln((x/m)-as)
=>e
rry=(x/m)-as
=>me
rry=x-mas
3 days late, sorry...
Merry Christmas is mathematically demonstrated !
(Thx Marc for this demonstration, it's not mine but I like it !!!!!)
