Image of a function

I want to find out the image of a function corresponding to given values of variable (without providing any information of constraints, suppose i dont have constraints). Is it possible using Ibex or Paver?
formally:
f(x,y): 2*x*(y^2)
x: [-5,5]
y:[0,10]
 is posible to find the image of f(x,y) ?what would be the interval for f(x,y).
 
Thanks,

Since your function has no multiple occurrence of variables, a simple evaluation is enough:

http://www.ibex-lib.org/doc/tutorial.html#interval-evaluation

Best regards,

Gilles