### Re: dynamically generated number lines

by Bruce Yoshiwara -$a = random(-5,5,1);

$b = random($a+1,$a+6,1);

$gr = init_graph(-6,-1,6,1, 'size' => [400,80],

'axes' => [$a-100,0]);

add_functions($gr, "0 for x in " .

"using color:blue and weight:2");

$gr->stamps( closed_circle($a,0,'blue') );

$gr->stamps( open_circle($b,0,'blue') );

$gr->lb( new Label($a,-.5,$a,

'black','center','middle'));

$gr->lb( new Label($b,-.5,$b,

'black','center','middle'));

$image = image(insertGraph($gr),

height=>50, width=>250 ) ;