How can I plot the graph?

2 次查看（过去 30 天）
Sauce
Sauce 2021-9-16
评论： Chunru 2021-9-17
I want to plot the function where y=x/3 until y=25 where it is constant y=25
function output = carFunc(x)
if (x >= 75)
output = 25;
else
output = x/3;
end
plot(x,carFunc(x))
end

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采纳的回答

Chunru
Chunru 2021-9-16
Ran in:
x = 0:100;
plot(x,carFunc(x));
ylim([0 30])
function output = carFunc(x)
output = zeros(size(x));
idx = (x >= 75);
output(idx) = 25;
idx = (x < 75);
output(idx) = x(idx)/3;
end
  2 个评论
Sauce
Sauce 2021-9-16
What does output=zeros(size(x)); do?
Chunru
Chunru 2021-9-17
"output=zeros(size(x));" allocates memory for the variable output and initializes it with 0s. This may make the code more efficient.

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更多回答（1 个）

Behzad Eydiyoon
Behzad Eydiyoon 2021-9-16
function output = carFunc(x)
x=0:0.1:75;
if (x >= 75)
output = 25;
else
output = x/3;
end
plot(x,output)
end

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