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answers:

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Has anyone come across an Objective-C equivalent to the MATLAB function interp2()? ...a 2D interpolation.

Cheers, Brett

+2  A: 

Read Numerical Recipes in C, Chapter 3 (especially section 3.6) and you should be able to do it on your own.

Gacek
A: 

Objective-C is simply a programming language. Higher-level functions such as interpolation, especially 2D interpolation, would be part of some library that you would use with Objective-C. Since Objective-C is derived from C, any suitable C library should work fine. Unfortunately, I wouldn't know which libraries to recommend.

e.James