Closed zyxnine9 closed 3 years ago
for example, f(x,y) = x+y, I want to know when f(x,y) = 0, the value for x and y, can anyone tell me can I do that or how to do that?
for example, f(x,y) = x+y, I want to know when f(x,y) = 0, the value for x and y, can anyone tell me can I do that or how to do that?