MATLAB心曲线 [英] MATLAB Heart Curve

问题描述

我正在尝试在MATLAB中获得它，但是我没有成功！那里有MATLAB专家吗?

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

替代文本http://www.freeimagehosting.net/uploads/94020b921d.gif

我想简单的命令应该可以工作，可能不需要程序.

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

我得到的错误是;

>> 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.

更新

即使这没有用！

>> 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.

推荐答案

我想知道plot是否是正确的命令.我试过了:

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')

几乎得到了OP正在寻找的图表.我怀疑OP使用polar可能会做得更好.尝试plot(r,t)给了我一个在(x，y)空间中的弯曲字样和一个警告:

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

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