How to suppress output of function when calling from another function?

So I have EulerMethod which when called itself I want it print the table with x = and y =. But when I call EulerMethod from LeapfrogMethod I don't want the one line of x = and y= to be outputted - is there a way to do this? (not semi-colon)

EulerMethod.m

function [ matrix ] = EulerMethod( fun, initX, initY,...
  steplength, maximum )
...
fprintf('x = %3g, y = %3g\n',matrix(J,1),matrix(J,2))
...
end

LeapfrogMethod.m

function [ matrix ] = LeapfrogMethod( fun, initX, initY,...
    steplength, maximum )
...
euler = EulerMethod(f,x0,y0,h,h);
...
end

Answer 1

[Stephen23]

Probably the easiest way of doing (almost) what you want is to use nargout. MATLAB uses this with several of their basic functions: when the function is called without any output arguments, then it simply prints to the command window, otherwise it returns only the output arguments. You can choose the logic yourself:

if nargout==0
    fprintf(...)
end

For an example of this see calendar.