[Help] Debug info before command has finished

It is possible to display debug information on the screen before a command has finished.

Normally wxMaxima waits for the whole 2D formula to be transferred before it begins to typeset. This saves time for making many attempts to typeset a only partially completed equation. There is a disp command, though, that will provide debug output immediately and without waiting for the current Maxima command to finish.

for i:1 thru 10 do (
    disp(i),
    /* (sleep n) is a Lisp function, which can be used */
    /* with the character "?" before. It delays the    */
    /* program execution (here: for 3 seconds)         */
    ?sleep(3)
)$