Matlab Tic and toc print something every .5 seconds?
27 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Use a while loop to do the following for a total of 5 seconds. Every half second print, using
fprintf, the message “The elapsed time is:” followed by the time
This is all I've come up with after looking at it for over an hr..
clear, clc
close all
tic
timerVal = tic;
value = toc(timerVal);
while value <= 5
I cant seem to figure this out... i can easily get it to print the elasped time up to 5 seconds but i have no idea how to make it print every .5 seconds... Any help would be appreciated
0 commentaires
Réponses (3)
Walter Roberson
le 16 Sep 2013
start a timer. Loop. Grab the elapsed time for the timer. continue in the loop if the elapsed time is less than 1/2 second. After the loop, stop the timer if need be.
2 commentaires
Walter Roberson
le 16 Sep 2013
Modifié(e) : Image Analyst
le 16 Sep 2013
do the body of this loop until 5 seconds have elapsed
do the body of this loop until 1/2 second has elapsed
pause, or do some busy work to waste time
end of inner loop
my gosh, we're half a second later than we were before. Oh what shall we do?
end of outer loop
Image Analyst
le 16 Sep 2013
How about if you do a for loop where there is a pause(0.5) and a fprintf() inside the loop?
tic
for k = 1 : 10
pause(0.5);
fprintf('Elapsed time = %.2f seconds.\n', toc);
end
2 commentaires
Image Analyst
le 16 Sep 2013
What's wrong with pause() - it seems to fit your homework question guidelines and doesn't seem to be excluded. Otherwise you can use a timer but it's trickier and more difficult. I'll give you one hint. Here's some code to stop all timers.
% Delete all timers from memory.
listOfTimers = timerfindall
if ~isempty(listOfTimers)
delete(listOfTimers(:));
end
You need to do something, so I'll let you figure out how to start the timer. The advantage of a timer is that you can do something in between timer events - you're not hung up like you are with pause().
Voir également
Catégories
En savoir plus sur Environment and Settings dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!