m AND n SUPERIMPOSED ON FLINN DIAGRAM
m, n and p are derived from p,r and q of Lisle (1979)
p=(ab-(ab)
-1
)/(a-a
-1
)
r=(ab-(ab)
-1
)/(b-b
-1
)
a=r/p or (a-a
-1
)/(b-b
-1
)
