Fplot Axis not scaling corectly.

I'm trying to plot various shapes. Using fplot, the axis scales as intended, until it reaches x = 5, and completely stops scaling. I've used a fixed x and y scale and everything graphs correctly, but for some reason, the axis refuses to scale correctly in auto mode.

if true
  % code
end
num = 15;
positive = true;
z = recaman(num)
for i = 1:(num - 1)
  disp(num2str(i))
 plot_semi(z(1, i), z(1, i + 1), positive, '-blue');
 positive = ~positive;
end
hold off;
function out = recaman(n);
  seq =[];
  cur = 0;
  for i = (1:n);
     if (any(ismember(seq, (cur - i))) || ((cur - i) <= 0))
         seq = horzcat(seq, cur);
         cur = cur + i;
     else
         seq = horzcat(seq, cur);
         cur = cur - i;
     end
  end
  out = seq;
end
function plot_semi(n1,n2,pos, color);
  syms f(x);
  f(x) = sqrt(((n2 - n1)/2.0).^2 - (x - ((n2 - n1)/2.0) - n1).^2 );
  if pos
      fplot(f(x), color);
  else
      fplot(-f(x), color);
  end
  axis fill;
  drawnow();
  hold on;
end

[KSSV]

The default intervel of fplot is [-5 5]. If you want more..you need to specify the limits.

[Raiyyan Siddiqui]

Is there a way to increase the default, while still allowing the graph to scale if the function exceeds the limits?

[KSSV]

Read the documentation...it has an option of specifying the limits to extend the default.

Answer 1

[madhan ravi]

An example:

h=fplot(x,[-20000 20000]) % from -20000 to 20000 the default is from -5 to 5 to change it you have to specify the Lima as shown