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2014/10/15 ¤U¤È 10:08:04
iphone Programming Glossary: eltsUsing the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework into A as n 2 complex #s 1. masquerades n real #s as n 2 complex #s 2 1i 4 3i ... 2. splits to A.realP 2 4 ... n 2 elts A.compP 1 3 ... n 2 elts vDSP_ctoz COMPLEX originalReal 2 stride 2 as each complex # is 2 floats A 1 stride 1 in A.realP.. #s 1. masquerades n real #s as n 2 complex #s 2 1i 4 3i ... 2. splits to A.realP 2 4 ... n 2 elts A.compP 1 3 ... n 2 elts vDSP_ctoz COMPLEX originalReal 2 stride 2 as each complex # is 2 floats A 1 stride 1 in A.realP .compP nOver2 n 2 elts.. vDSP_ctoz COMPLEX originalReal 2 stride 2 as each complex # is 2 floats A 1 stride 1 in A.realP .compP nOver2 n 2 elts You would really need to look at how A is allocated to get this maybe look up COMPLEX_SPLIT in the documentation. A.realp..
http://stackoverflow.com/questions/3997976/parse-nsurl-query-property params NSMutableDictionary alloc init for NSString param in url componentsSeparatedByString @ NSArray elts param componentsSeparatedByString @ if elts count 2 continue params setObject elts objectAtIndex 1 forKey elts objectAtIndex.. alloc init for NSString param in url componentsSeparatedByString @ NSArray elts param componentsSeparatedByString @ if elts count 2 continue params setObject elts objectAtIndex 1 forKey elts objectAtIndex 0 Note This is sample code. All error cases.. @ NSArray elts param componentsSeparatedByString @ if elts count 2 continue params setObject elts objectAtIndex 1 forKey elts objectAtIndex 0 Note This is sample code. All error cases are not managed. share improve this..
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