# System with floor functions

• November 18th 2012, 05:01 AM
mathmagix
System with floor functions
For the following system I can figure out that $[x]=0, [y]=$ or $[x]=1,[y]=3$ but i can't go on. Sugestions please!
Attachment 25783
• November 18th 2012, 05:03 PM
chiro
Re: System with floor functions
Hey mathmagix.

For this problem you should consider what possibilities can generate the following relations.

What is the value of the floor function in terms of its inputs to return 3 in the 2nd answer?

Based on this can you get an in-equality for xy? (Hint: if z = [n,n+1) for integer n then floor(z) = n. So the range for [n,n+1) is the range you need to consider for the input.