Display Problem

[Thomas D. Dean]

Octave 4.1.0+

If I run the following code, line 1 ... line 9 do not display, just 
press return and then yes or no.  If I answer asdf, then line 1 ... line 
9 are displayed and yes or no repeated.

Put this code in a file, problem.m and execute it.  When asked, press 
return.  When asked yes or no, enter asdf and press return.

function problem()
  disp ("");
  input ("Press Return to continue:");
  disp ("");
  disp ("line 1");
  disp ("line 2");
  disp ("line 3");
  disp ("line 4");
  disp ("line 5");
  disp ("line 6");
  disp ("line 7");
  disp ("line 8");
  disp ("line 9");
  disp ("");
  if (yes_or_no("Do you wish to close all the plots?"))
    show("close all");
  else
    blanks();
    disp ("Use the octave command close all to close the plots.");
  endif

endfunction;

Tom Dean