plocha č.												
n												
n'												
r												
d												
												
x												
X = n/x												
' = (n'-n)/r												
X' = X + ϕ' 												
p = 1/(1-X'd/n')												
pX‘ = Xi+1												
x' = n'/X'												
												
												
plocha č.												
n												
n'												
r												
d												
												
x												
X = n/x												
' = (n'-n)/r												
X' = X + ϕ' 												
p = 1/(1-X'd/n')												
pX‘ = Xi+1												
x' = n'/X'