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how to store big triangular matrix
I need to store and operate(so time of referencing operations is very important) with thriangular matrix. How to do it effective...
11 years 前 | 1 个回答 | 1
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How to calculate array by expression with sum, not using loops
I want to calc array (k=1..N) from expression arr(k)=1/N*(\sum_{i=1}^{N}{arr2(i)*cos((2*k-1)*pi*i/N)}) arr2 -- already calcul...
11 years 前 | 1 个回答 | 0
