这些工作是自(Apollonius of Perga)以来圆锥曲线论的*进步。1642年他设计并制作了一台能自动进位的加减法计算装置,被称为是世界上第一台数字计算器,为以后的计算机设计提供了基本原理。1654年他开始研究几个方面的数学问题,在无穷小分析上深入探讨了不可分原理,得出求不同曲线所围面积和重心的一般方法,并以积分学的原理解决了摆线问题,于1658年完成《论摆线》。
目录 1 THOUGHTS ON MIND AND ON STYLE. 2 THE MISERY OF MAN WITHOUT GOD. 3 OF THE NECESSITY OF THE WAGER. 4 OF THE MEANS OF BELIEF. 5 JUSTICE AND THE REASON oF EFFECTS. 6 THE PHILOSOPHERS. 7 MORALITY AND DOCTRINE. 8 THE FUNDAMENTALS OF THE CHRISTIAN RELIGION. 9 PERPETUITY. 10 TYPOLOGY. 11 THE PROPHECIES. 12 PROOFS OF JESUS CHRIST. 13 THE MIRACLES. 14 APPENDIX: POLEMICAL FRAGMENTS.
这些工作是自(Apollonius of Perga)以来圆锥曲线论的*进步。1642年他设计并制作了一台能自动进位的加减法计算装置,被称为是世界上台数字计算器,为以后的计算机设计提供了基本原理。1654年他开始研究几个方面的数学问题,在无穷小分析上深入探讨了不可分原理,得出求不同曲线所围面积和重心的一般方法,并以积分学的原理解决了摆线问题,于1658年完成《论摆线》。
精彩内容 It consists, then, in a correspondence which we seek to establish between the head and the heart of those to whom we speak, on the one hand, and, on the other, between the thoughts and the expressions which we employ. This assumes that we have studied well the heart of man so as to know all its powers and, then, to find the just proportions of the discourse which we wish to adapt to them. We must put ourselves in the place of those who are to hear us, and make trial on our own heart of the turn which we give to our discourse in order to see whether one is made for the other, and whether we can assure ourselves that the hearer will be, as it were, forced to surrender. We ought to restrict ourselves, so far as possible, to the simple and natural, and not to magnify that which is little, or belittle that which is great. It is not enough that a thing be beautiful; it must be suitable to the subject, and there must be in it nothing of excess or defect.……
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