Why the result of acosd (0) only 90?
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Why the result of acosd (0) only 90? In mathematics it should be 90 and 270. Can anybody explain to me why the matlab output is only 90? Thx b4 for the help
>> acosd(0)
ans =
90
2 commentaires
Réponse acceptée
Pedro Villena
le 3 Déc 2012
Modifié(e) : Pedro Villena
le 3 Déc 2012
ACOSD is a SISO function that returns only one output value for each input value (real or complex).
You could see the behaviour of acosd in real, imaginary, absolute and phase plane.
x = [-5:0.00001:5];
subplot(2,2,1), plot(x,real(acosd(x)));
title('y = real(acos(\alpha))'),xlabel('\alpha [º]'),ylabel('y'),
subplot(2,2,2), plot(x,imag(acosd(x)));
title('y = imag(acos(\alpha))'),xlabel('\alpha [º]'),ylabel('y'),
subplot(2,2,3), plot(x,abs(acosd(x)));
title('y = abs(acos(\alpha))'),xlabel('\alpha [º]'),ylabel('y'),
subplot(2,2,4), plot(x,phase(acosd(x)));
title('y = phase(acos(\alpha))'),xlabel('\alpha [º]'),ylabel('y'),
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Statistics and Machine Learning Toolbox 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!