plocha č.													
n'													
n													
r													
d													
													
x													
n/x													
' = (n'-n)/r													
n'/x'													
x'													
x'-d													
x'/(x'-d)													
													
sin s													
sin e													
sin e'													
sin s'													
x'													
x'-d													
													
h													
s													
e													
s - e													
e'													
s'													
													
													
													
##### Sheet/List 2 #####

##### Sheet/List 3 #####