How to find angles, which lies between -π and -2π.Because matlab returns only values between ±π using atan or atand function.

2 vues (au cours des 30 derniers jours)
gfgf99
gfgf99 le 2 Juin 2015
Commenté : Walter Roberson le 2 Juin 2015
Because matlab returns only values between ±π using 'atan' or 'atand 'functions.i want to get an angle between -π and -2π. Are there any solution to do that using functions? i'm finding a solution without using a absolute value(abs function)
thank you
  2 commentaires
gfgf99
gfgf99 le 2 Juin 2015
Modifié(e) : gfgf99 le 2 Juin 2015
simply, i want to plot(scatter) angles without discontinuity which range are lying between 0 to 2π .ex: circular data points(point cloud) angles.
Walter Roberson
Walter Roberson le 2 Juin 2015
Yes, use unwrap(). It will get rid of discontinuities.

Connectez-vous pour commenter.

Connectez-vous pour répondre à cette question.

Réponses (2)

Roger Stafford
Roger Stafford le 2 Juin 2015
Do this to your angle, 'a':
a = mod(a,pi)-2*pi;
It will then lie between -2*pi and -pi.
[Note: atan gives angles between -pi/2 and +pi/2, not -pi and +pi.]
Walter Roberson
Walter Roberson le 2 Juin 2015
Use unwrap()

Catégories

En savoir plus sur Quadratic Programming and Cone Programming dans Help Center et File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by