how can i plot this piceise function?

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Jesper Christensen
Jesper Christensen 2017-12-1
评论： Jesper Christensen 2017-12-1
>> x = 0 : 0.01 : 25;
for k = 1 : length(x)
if x < 6.7
y(k) = 1200*x;
elseif x >= 6.7 && x < 12
y(k) = 83*x;
else
y(k) = -1200*x;
end
end
plot(x, y);
grid on;

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回答（1 个）

Torsten
Torsten 2017-12-1
x = 0 : 0.01 : 25;
for k = 1 : length(x)
if x(k) < 6.7
y(k) = 1200*x(k);
elseif x(k) >= 6.7 && x(k) < 12
y(k) = 83*x(k);
else
y(k) = -1200*x(k);
end
end
plot(x, y);
grid on;
Best wishes
Torsten.
  1 个评论
Jesper Christensen
Jesper Christensen 2017-12-1
i want the funktion to raise when x 0-->6.7 and stay 83 from x 6.7 --> 12 and then drop when above 12

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