Thus , it is possible to have an array of hashes or a hash of arrays or a hash of hashes or an array of arrays n - dimensional array 這就允許perl生成一個散列的數(shù)組、數(shù)組的散列、散列的散列、或是數(shù)組的數(shù)組(多維數(shù)組) 。
Particular libraries discussed are meschach , which provides routines for operating on matrices and vectors for projects coded in c , the cooperware matrix cwmtx for c coding , and blitz , which provides an n - dimensional array class for c with integral , floating , complex , and well - behaved , user - defined types 在這里具體討論的庫有三個: meschach庫為c代碼編寫的項目提供例程,用于矩陣和向量的運算; cooperware matrix ( cwmtx )庫可用于c + +代碼編寫; blitz庫為c + +提供可用整數(shù)、浮點數(shù)、復(fù)數(shù)和規(guī)范的用戶定義的類型的n維數(shù)組類。