| Sum of two vectors having an included angle greater than ninety degrees. | |
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MedLine Citation:
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PMID: 125777 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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If the angle between two vectors is acute an increase in either vector will increase the resultant. If the angle is obtuse, however, an increase in one vector may either decrease or increase the resultant. A mathematical derivation and a simple geometric construction are presented. The theory is applied to vectors in the horizontal plane in right ventricular hypertrophy. It is shown that as the right ventricular vector is increased from a small value, the resultant vector may first decrease and then increase again with a continuous clockwise rotation. |
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Authors:
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C V Nelson; B C Hodgkin |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Journal of electrocardiology Volume: 8 ISSN: 0022-0736 ISO Abbreviation: J Electrocardiol Publication Date: 1975 Jul |
Date Detail:
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Created Date: 1975-11-22 Completed Date: 1975-11-22 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0153605 Medline TA: J Electrocardiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 285-6 Citation Subset: IM |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Cardiomegaly
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physiopathology* Humans Mathematics Vectorcardiography* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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