We propose a simple method for validated computation of eigenvalues of symmetric matrices. The method is based on <img height="15" border="0" style="vertical-align:bottom" width="40" alt="" title="" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0024379500002743-si1.gif"> decomposition and its error estimation. The indices of eigenvalues with respect to magnitude can also be obtained by Cheap Babyliss Hair Curlers
A new prenylated dibenzoylmethane, kanzonol A, and a new chalcone, kanzonol B, along with two new isoprenoid-substituted flavones, kanzonols D and E were isolated from the roots of Glycyrrhiza eurycarpa. Their structures were elucidated by spectroscopic methods. The diprenylated chalcone, kanzonol C, was also isolated from this species for the first time as a natural product.
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