Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

A little confusion over x and y values

  1. May 5, 2012 #1
    Suppose a function is defined as:

    f(x,y)=0 for x=y=0

    Does this mean that the function would be zero when both x and y are xero or when either one of them are zero?
     
  2. jcsd
  3. May 6, 2012 #2
    It means that at the origin (x,y)=(0,0) or as you write x=y=0, that the function f(x,y)=0.
    I.e. when BOTH are zero.
     
  4. May 7, 2012 #3
    Thanks.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook