求助MATLAB的绘图问题

TDF

fplot(y=(((0.1225-x.^2)^2+0.0004*x.^2)/(((0.1225-x.^2)*(1-x.^2)-0.3062*x.^2-0.0013*x.^2)^2+(0.021*x.-0.1262*x.^3)^2)))/(1/2),[0 4])
??? fplot(y=(((0.1225-x.^2)^2+0.0004*x.^2)/(((0.1225-x.^2)*(1-x.^2)-0.3062*x.^2-0.0013*x.^2)^2+(0.021*x.-0.1262*x.^3)^2)))/(1/2),[0 4])
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Error: The expression to the left of the equals sign is not a valid target for an assignment.




我刚学MATLAB ，想用它画一个X，Y 关系的二维图。可是怎么做都出现错误。求大侠指点。感激不尽啦

tenglang

回复 1 # TDF 的帖子

1. fplot(@(x) (((0.1225-x.^2)^2+0.0004*x.^2)/(((0.1225-x.^2)*(1-x.^2)-0.3062*x.^2-0.0013*x.^2)^2+(0.021*x-0.1262*x.^3)^2)/(1/2)),[0 4])
   
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复制代码

TDF

谢谢您。