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internal function to set a float vector[3] used to initialize camera position with a view and projection matrix in renderImage() // Args: vector - fl

Preallocates \a reserveSize non zeros. * * Precondition: the matrix must be in compressed mode. */

Swaps the content of two sparse matrices of the same type. * This is a fast operation that simply swaps the underlying pointers and parameters.

Get a pointer to the (0,0) entry. The entries are in column order. This version gives read-only pointer

Constructs a read-write Map to a sparse matrix of size \a rows x \a cols, containing \a nnz non-zero coefficients, * stored as a sparse format a

\returns a const expression of the diagonal coefficients. */

Returns the time in us since the last call to reset or since the Clock was created.

\returns a view of the upper triangular matrix U */