Solved by xta0 in post #5 
              
              
                Hi @kulikovv, 
We didn’t compile LAPACK into our binary. However, since LAPCK is supported by the Accelerate.framework on iOS. You can manually enable it by following the steps below 

Add a compiler flag - CMAKE_ARGS+=("-DUSE_LAPACK=ON") in build_ios.sh to tell cmake to compile LAPACK.
Follow the t…