domain of f(x,y) = log(1-(x^2+y^2))
Assuming "domain" is referring to a real function property | Use as instead
Assuming "log" is the natural logarithm | Use instead

Input interpretation

domain | f(x, y) = log(1 - (x^2 + y^2))

Result

{(x, y) element R^2 : x^2 + y^2<1} (assuming a real-valued function)
POWERED BY THE WOLFRAM LANGUAGE