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Is it possible to create a legend on a graph which is reliant on the function input?

3 次查看（过去 30 天）
Alok Virkar
Alok Virkar 2017-11-3
关闭： MATLAB Answer Bot 2021-8-20
I am graphing a function, and I want the legend on the graph to post what the input of the function is...

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回答（2 个）

KSSV
KSSV 2017-11-3
x = linspace(0,2*pi) ;
f1 = @(x) sin(x) ;
f2 = @(x) x.^2 ;
y1 = f1(x) ;
y2 = f2(x) ;
figure
hold on
plot(x,y1,'r')
plot(x,y2,'b')
legend('sin(x)','x^2')
Walter Roberson
Walter Roberson 2017-11-3
Yes but it would not often be readable.
For a function with input in the variable x you can do
legend( num2str(x))
However the user could just look at the plot to see what the range of the values were?

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