ok, so I have a function of this form:
 V(a)=Ve+(Vp-Ve)(sin|a|) (to the power of g
(only sin|a| to the power of g)
 where a is an angle
 so, this function looks more or less like 8 with adjustable waist with a coordinate system in the center

and in that expression, Ve is the velocity for the angle 0 (the radius of the waist of the 8
and Vp is the velocity for the angle 90, the hight of the one half of the 8
so now, I have to plot the dependency  between
 the ratio Vx(a)/Vp   and   g

where  Vx(a) is the 'fatness' of the 8, ie, the diameter where the buble is the widest (not the waist of the 8!)