Home/ Questions/Q 773497
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-14T18:58:29+00:00

I am trying to get this in MATLAB, however I am not successful !

  • 0

I am trying to get this in MATLAB, however I am not successful ! Any MATLAB gurus out there ?

alt text http://www.freeimagehosting.net/uploads/94020b921d.gif

I guess simple commands should work, a program may not be needed.

The error, I am getting is;

>> t = -pi:0.1:pi;
>> r = ((sin(t)*sqrt(cos(t)))*(sin(t) + (7/5))^(-1)) - 2*sin(t) + 2 ;
??? Error using ==> mtimes
Inner matrix dimensions must agree.

UPDATE

Even this did not work ! 

>> t = -pi:0.1:pi;
>> r = ((sin(t).*sqrt(cos(t))).*(sin(t) + (7/5)).^(-1)) - 2*sin(t) + 2 ;
>> plot(r,t)
??? Error using ==> plot
Vectors must be the same lengths.
Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    I wonder whether plot is the right command for this. I tried this:

    ezpolar('((sin(t).*sqrt(cos(t))).*(sin(t) + (7/5)).^(-1)) - 2*sin(t) + 2')

    and almost got the diagram OP is looking for. I suspect OP might do even better with polar. Trying plot(r,t) gave me a squiggle in (x,y) space and a warning:

    Warning: Imaginary parts of complex X and/or Y arguments ignored
    • 0