Spline Interpolation.

[Oscar Bayona Candel]

Hi all,
 
I have this matrix:
 
A=[1 2
30 4
60 7
180 12
1082  25];
 
I want to create a function (i.e function(31)) that interpolates the associated value A(:,2). Let say the result is 4,02 (for example)
 
I have read that there is a function using splines in octave but I´m not able to find it or any documentation.
 
Can anyone help me?
 
Thanks in advance for all.
 
 

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