spline interpolation between three values

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Abdulrahman Mohamed
Abdulrahman Mohamed 2022-10-27
回答： Chunru 2022-10-27
I have pressure ,tempreature and density data and I want to make spline interpolation that fits all
so I have P=[100 200 300];
T=[100 150 400];
density=[0.4,0.7.0.8]
so i need to get spline function for p,t and density I found onle splin function for two parameter only

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回答（1 个）

Chunru
Chunru 2022-10-27
Ran in:
P=[100 200 300];
T=[100 150 400];
density=[0.4,0.7,0.8];
Pq =100:300;
Tq = spline(P, T, Pq);
dq = spline(P, density, Pq);
subplot(121); plot(P, T, 'o', Pq, Tq, 'b-');
subplot(122); plot(P, density, 'o', Pq, dq, 'b-');

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