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McLaren Rulez

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As the title suggests, I have a 2D array of data. Essentially, I solved a DE using MATLAB and it gave me the array of x against t. I want MATLAB to create a function for me by interpolation so I can use it again (to solve another different set of DEs). I've been stuck on this for a while now.

How do I go from an array of x vs t to the point where I have a function x(t)?

Thank you :)