[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
## problem with the polar commend

**From**: |
insafba |

**Subject**: |
problem with the polar commend |

**Date**: |
Mon, 7 Jan 2019 15:23:09 -0600 (CST) |

Hello there,
I have a pretty long equation that I want to plot using polar coordinates.
Please see the equation below
<http://octave.1599824.n4.nabble.com/file/t373159/equation_octave.png>
The problem is when I write it in octave and trying to plot it using
polar(theta, r), the figure is empty!! nothing is plotted!
could you please help me with this? thank you so much
here is the code
theta= 0:0.02:2*pi;
r = sqrt(((b^2).*(cos(theta)).^2 + (a^2).*(sin(theta)).^2 -
abs((b^2).*(cos(theta)).^2 + (a^2).*(sin(theta)).^2)) ./
(2*(cos(theta)).^2.*(sin(theta)).^2));
polar(theta, r)
--
Sent from: http://octave.1599824.n4.nabble.com/Octave-General-f1599825.html

**problem with the polar commend**,
*insafba* **<=**