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how to linearly interpolate 2D matrix at a point (x,y)

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Matlab_Student
Matlab_Student 2018-3-22
编辑： Jan 2018-3-26
X: x-coordinate values, Y: y-coordinate values. These correspond to Values as the 2D table. interpolate the value at (2.5,3.5) but my code doesn't work. receive error of wrong input arguments
interpolatedvalue = interp2(X,Y,Values,2.5,3.5);

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Jan
Jan 2018-3-26
编辑：Jan 2018-3-26
Please post a copy of the complete error message and show us the inputs.
This works fine:
X = rand(4, 5);
interp2(1:5, 1:4, X, 2.5, 3.5)
% Not: 1:4, 1:5 !!!

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