Glucose
发表于 2025-3-23 10:56:00
John Vincereview to attempt an evaluation of the preventive trials conducted during these years but to try, in a pragmatic and informal way, to discuss some of the methodological aspects of large intervention studies in the area of cardiovascular diseases. The review, not being systematic, will bypass some im
CHASM
发表于 2025-3-23 17:26:31
John Vinceels in 1978 (,Pharmaceutical Medicine - the Future‘) and Paris in 1981 (‘Drug Safety -;- Progress and Controversies‘). This 5th meeting discussed improvements in drug development and application and examined the impact of regulatory activities.978-3-642-54132-2978-3-642-54130-8
OREX
发表于 2025-3-23 21:47:23
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粗俗人
发表于 2025-3-23 22:52:48
Introduction,scale, translation and rotation. The first two transforms are relatively easy to visualise, but rotations can cause problems – due to the need to construct a rotation transform from individual rotations about the .-, .- and .-axes. Although such transforms work, they are far from perfect. What reall
左右连贯
发表于 2025-3-24 05:57:49
Number Sets and Algebra,ns and equations and the rules used for their construction and evaluation. These, in turn, reveal the need to extend every-day numbers with so called complex numbers. The second part of the chapter is used to define groups, rings and fields.
ABOUT
发表于 2025-3-24 07:24:08
Complex Numbers,ey are manipulated algebraically. Many of the qualities associated with quaternions are found in complex numbers, which is why they are worthy of close examination. Readers interested in this subject may want to examine the author’s book . [.].
CHASE
发表于 2025-3-24 11:57:09
The Complex Plane,fore someone else is the work of historians, who can help unravel who should be blamed for an event, and who should take the credit. Untangling events from journals, books and private letters, and placing them in an unbiased, temporal sequence requires subject knowledge, tenacity and objective analy
虚弱
发表于 2025-3-24 15:44:59
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coddle
发表于 2025-3-24 22:59:23
3-D Rotation Transforms,need to be able to rotate about an arbitrary axis. To this end, we will develop a matrix transform that achieves such a rotation, and in the following chapter develop a similar transform using quaternions.
BRAWL
发表于 2025-3-24 23:11:54
Quaternions in Space,quaternions, and the development of octonions. The short section on composition algebras reveals that quaternions are rather special, and informs us why Hamilton could not identify an algebra based upon the hyper-complex number ..