نتایج جستجو برای: eigenvalue calculator
تعداد نتایج: 21732 فیلتر نتایج به سال:
The teaching of functions plays a key role in the secondary mathematics curriculum. Electronic technologies afford deepening student understanding of functions by linking multiple representations. Findings from my previous research which investigated the understanding of functions by students in their final two years of secondary school whilst immersed in a graphing calculator learning environm...
Acknowledgments: The views expressed here are those of the authors and not necessarily those of the Federal Reserve Bank of San Francisco or the Federal Reserve System. These comments were prepared for presentation at the 2003 meeting of the American Statistical Association. We thank Alastair Hall for the opportunity to discuss the paper and Anita Todd for editorial assistance.
BACKGROUND AND PURPOSE Knowing characteristic adverse events (AEs) and their incidence among patients participating in acute stroke trials may assist interpretation of future studies. We aimed to develop an online tool to inform stroke trial safety. METHODS We identified relevant AEs from patients within the Virtual International Stroke Trials Archive (VISTA), using receiver operating charact...
BACKGROUND The American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP) universal surgical risk calculator is an online tool intended to improve the informed consent process and surgical decision-making. The risk calculator uses a database of information from 585 hospitals to predict a patient's risk of developing specific postoperative outcomes. METHODS Patient ...
................................................................................................................... i Preface....................................................................................................................iii Acknowledgements .................................................................................................. v
In the histories of logic and of computer science which mention precursors and pioneers, we often find mention of Leibniz, the great l7th-century mathematician and philosopher, who was one of the first to try to build a mechanical calculator, and who tried to formulate a Mathesis universalis, a sort of scientific language which would permit any two disputants to settle their differences merely ...
The sphere and circumscribing cylinder engraved on Archimedes’ tombstone commemorate his landmark discovery that their volumes and surface areas are related by the same constant ratio 2/3. He discovered the volume relation and many other geometrical results by mechanical balancing. In particular, he found the volume of a cylindrical wedge by introducing the special balancing shown in Figures 1a...
It is shown, that mechanical alignment can be efficient for suprathermally rotating grains, provided that they drift with supersonic velocities. Such a drift should be widely spread due to both Alfvénic waves and ambipolar diffusion. Moreover, if suprathermal rotation is caused by grain interaction with a radiative flux, it is shown, that mechanical alignment may be present even in the absence ...
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