fzero for f(x,y) where y is a m*m matrix

I know how to do it when yis a 1*m matrix, for example:

f1 = @(y,x) y-x.^2; 
y=1:1:4; 
arrayfun(@(i) fzero(@(x) f1(y(i),x),1),1:numel(y))

My question is how to do it when y is a m*m matrix. i.e. for each element of y, how can I find value of x that makes f3=0?

f3 = @(y,x) y-x.^2; 
y=[1:0.5:2;2:1:4;3:1.5:6]

???

Answer 1

[Joseph Cheng]

you've got already. but all you need is one extra line to reshape f3 to be

[row col]=size(y);
reshape(ansfromarrayfun,row,col)

[Lily]

Thanks That really helps a lot.