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Recommended objective-c Mathematical libraries for working with quaternion matrix vectors, etc.

I am looking for a good math library in objective-c that performs your usual Matrix Vector and Quaternion tasks for use in conjunction with Core Animation. The library must be free for commercial use.

Thanks!

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Eigen is a lightweight C ++ linear algebra package that provides support for matrices, vectors and quaternions. Although I did not use it in anger, it seems to have a nicer interface than BLAS / LAPACK, and supports a bunch of things that these libraries do not

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Current iOS versions include the Accelerate Framework , which includes a large set of accelerated mathematical math procedures (BLAS, LAPACK, etc.)

Added: You can also use any C libraries or routines that you may have, since Objective-C is a compatible superset of ANSI C.

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I do not think you will find the ObjectiveC math library. I am using vfpmathlibrary

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