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Prototype
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template <class LinalgA, class LinalgB>
void copy(const LinalgA& A, LinalgB B) ;
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Description
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Copy the elements of matrix A into matrix B, or copy the elements of vector x into vector y. For shaped and sparse matrices, this copies only the elements stored in A to B. If x is a sparse vector and y is dense, a "scatter" is performed. If y is sparse and x is dense, then a "gather" is performed. If both vectors are sparse, but of different structure the result is undefined. | ||||||

Definition
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mtl.h | ||||||

Preconditions
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Complexity
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O(m*n) for matrices. O(nnz) if either A or B are sparse and of the same orientation (otherwise it can be O(nnz^2). O(n) for vectors. | ||||||

Example
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In vecvec_copy.cc:
dense1D<double> x(10,1); dense1D<double> y(10); double alpha = 4.0; mtl::copy(scaled(x, alpha), y); | ||||||

Notes
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See also
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