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首页 > 论文发表 > 数学家不愿意发表论文英语

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马路小花

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因为我很懒不想写论文I wouldn't like to write the essay because I' m lazy.I'm too lazy to write the essay.I'm so lazy that I wouldn't like to write the essay.

207 评论

嫣雨飘零

I don't want to write the passage because I am very lazy.

245 评论

蘅芷菁苓

翻译:...have published some papers in the journal【详释】在期刊上:in the journal,地点状语放在句尾发表了:have published,谓语动词,根据语境用了现在进行时论文:(some) papers,宾语,英语语言习惯加上some,也可以用a paper表示单一的论文。

316 评论

mirandamly

欧拉生平 英文的生平及贡献见上面那位仁兄的即可!欧拉(Euler,1707~1783),瑞士数学家及自然科学家。1707年4月15日出生于瑞士的巴塞尔,1783年9月18日于俄国的彼得堡去逝。欧拉出生于一个牧师家庭,自幼受到父亲的教育。13岁时入读巴塞尔大学,15岁大学毕业,16岁获得硕士学位。 欧拉的父亲希望他学习神学,但他最感兴趣的是数学。在上大学时,他已受到约翰第一·伯努利的特别指导,专心研究数学。18岁时,他彻底的放弃了当牧师的想法而专攻数学,并开始发表文章。 1727年,在丹尼尔·伯努利的推荐下,欧拉到俄国的彼得堡科学院从事研究工作,并在1731年接替丹尼尔第一·伯努利,成为物理学教授。 在俄国的14年中,他努力不懈地投入研究工作,在分析学、数论及力学方面均有出色的表现。此外,欧拉还应俄国政府的要求,解决了不少如地图学、造船业等的实际问题。 1735年,他因工作过度以致右眼失明。在1741年,他受到普鲁士腓特烈大帝的邀请到德国科学院担任物理数学所所长一职,长达25年。他在柏林期间的研究内容更加广泛,涉及行星运动、刚体运动、热力学、弹道学、人口学等等,这些工作与他的数学研究互相推动着。与此同时,他在微分方程、曲面微分几何及其他数学领域均有开创性的发现。 1766年,他应俄国沙皇喀德林二世的礼聘重回彼得堡。在1771年,一场重病使他的左眼亦完全失明,但他以其惊人的记忆力和心算技巧继续从事科学创作。他通过与助手们的讨论以及直接口授等方式完成了大量的科学著作,直至生命的最后一刻。 欧拉是18世纪数学界最杰出的人物之一,他不但为数学界做出贡献,更把数学推至几乎整个物理的领域。此外,他是数学史上最多产的数学家,写了大量的力学、分析学、几何学、变分法的课本,《无穷小分析引论》,《微分学原理》,以及《积分学原理》都成为数学中的经典著作。除了教科书外,欧拉平均以每年800页的速度写出创造性论文。他去世后,人们整理出他的研究成果多达74卷。 欧拉最大的功绩是扩展了微积分的领域,为微分几何及分析学的一些重要分支,如无穷级数、微分方程等的产生与发展奠定了基础。 欧拉把无穷级数由一般的运算工具转变为一个重要的研究科目。他计算出了ξ函数在偶数点的值,他证明了a2k是有理数,而且可以伯努利数来表示。此外,他对调和级数亦有所研究,并相当精确的计算出欧拉常数γ的值,其值近似为0.57721566490153286060651209…… 在18世纪中叶,欧拉和其他数学家在解决物理方面的问过程中,创立了微分方程这门学科。其中在常微分方程方面,他完整地解决了n阶常系数线性齐次方程的问题,对于非齐次方程,他提出了一种降低方程阶的解法;在偏微分方程方面,欧拉将二维物体振动的问题,归结出了一、二、三维波动方程的解法。欧拉所写的《方程的积分法研究》更是偏微分方程在纯数学研究中的第一篇论文。 在微分几何方面,欧拉引入了空间曲线的参数方程,给出了空间曲线曲率半径的解析表达方式。在1766年,他出版了《关于曲面上曲线的研究》,这是欧拉对微分几何最重要的贡献,更是微分几何发展史上一个里程碑。他将曲面表为z=f(x,y),并引入一系列标准符号以表示z对x,y的偏导数,这些符号至今仍通用。此外,在该著作中,他亦得到了曲面在任意截面上截线的曲率公式。 欧拉在分析学上的贡献不胜枚举,如他引入了G函数和B函数,这证明了椭圆积分的加法定理,以及最早引入二重积分等等。 在代数学方面,他发现了每个实系数多项式必分解为一次或二次因子之积,即a+bi的形式。欧拉还给出了费马小定理的三个证明,并引入了数论中重要的欧拉函数φ(n),他研究数论的一系列成果使得数论成为数学中的一个独立分支。欧拉又用解析方法讨论数论问题,发现了ξ函数所满足的函数方程,并引入欧拉乘积。而且还解决了著名的哥尼斯堡七桥问题,创立了拓扑学。 欧拉对数学的研究如此广泛,因此在许多数学的分支中都能经常见到以他的名字命名的重要常数、公式和定理。

307 评论

艳的笑窝

欧拉1707年出生在瑞士的巴塞尔(Basel)城,13岁就进巴塞尔大学读书,得到当时最有名的数学家约翰·伯努利(Johann Bernoulli,1667-1748年)的精心指导. 欧拉渊博的知识,无穷无尽的创作精力和空前丰富的著作,都是令人惊叹不已的!他从19岁开始发表论文,直到76岁,半个多世纪写下了浩如烟海的书籍和论文.到今几乎每一个数学领域都可以看到欧拉的名字,从初等几何的欧拉线,多面体的欧拉定理,立体解析几何的欧拉变换公式,四次方程的欧拉解法到数论中的欧拉函数,微分方程的欧拉方程,级数论的欧拉常数,变分学的欧拉方程,复变函数的欧拉公式等等,数也数不清.他对数学分析的贡献更独具匠心,《无穷小分析引论》一书便是他划时代的代表作,当时数学家们称他为"分析学的化身". 欧拉是科学史上最多产的一位杰出的数学家,据统计他那不倦的一生,共写下了886本书籍和论文,其中分析、代数、数论占40%,几何占18%,物理和力学占28%,天文学占11%,弹道学、航海学、建筑学等占3%,彼得堡科学院为了整理他的著作,足足忙碌了四十七年. 欧拉著作的惊人多产并不是偶然的,他可以在任何不良的环境中工作,他常常抱着孩子在膝上完成论文,也不顾孩子在旁边喧哗.他那顽强的毅力和孜孜不倦的治学精神,使他在双目失明以后,也没有停止对数学的研究,在失明后的17年间,他还口述了几本书和400篇左右的论文.19世纪伟大数学家高斯(Gauss,1777-1855年)曾说:"研究欧拉的著作永远是了解数学的最好方法." 欧拉的父亲保罗·欧拉(Paul Euler)也是一个数学家,原希望小欧拉学神学,同时教他一点教学.由于小欧拉的才人和异常勤奋的精神,又受到约翰·伯努利的赏识和特殊指导,当他在19岁时写了一篇关于船桅的论文,获得巴黎科学院的奖的奖金后,他的父亲就不再反对他攻读数学了. 1725年约翰·伯努利的儿子丹尼尔·伯努利赴俄国,并向沙皇喀德林一世推荐了欧拉,这样,在1727年5月17日欧拉来到了彼得堡.1733年,年仅26岁的欧拉担任了彼得堡科学院数学教授.1735年,欧拉解决了一个天文学的难题(计算慧星轨道),这个问题经几个著名数学家几个月的努力才得到解决,而欧拉却用自己发明的方法,三天便完成了.然而过度的工作使他得了眼病,并且不幸右眼失明了,这时他才28岁.1741年欧拉应普鲁士彼德烈大帝的邀请,到柏林担任科学院物理数学所所长,直到1766年,后来在沙皇喀德林二世的诚恳敦聘下重回彼得堡,不料没有多久,左眼视力衰退,最后完全失明.不幸的事情接踵而来,1771年彼得堡的大火灾殃及欧拉住宅,带病而失明的64岁的欧拉被围困在大火中,虽然他被别人从火海中救了出来,但他的书房和大量研究成果全部化为灰烬了. 沉重的打击,仍然没有使欧拉倒下,他发誓要把损失夺回来.在他完全失明之前,还能朦胧地看见东西,他抓紧这最后的时刻,在一块大黑板上疾书他发现的公式,然后口述其内容,由他的学生特别是大儿子A·欧拉(数学家和物理学家)笔录.欧拉完全失明以后,仍然以惊人的毅力与黑暗搏斗,凭着记忆和心算进行研究,直到逝世,竟达17年之久. 欧拉的记忆力和心算能力是罕见的,他能够复述年青时代笔记的内容,心算并不限于简单的运算,高等数学一样可以用心算去完成.有一个例子足以说明他的本领,欧拉的两个学生把一个复杂的收敛级数的17项加起来,算到第50位数字,两人相差一个单位,欧拉为了确定究竟谁对,用心算进行全部运算,最后把错误找了出来.欧拉在失明的17年中;还解决了使牛顿头痛的月离问题和很多复杂的分析问题. 欧拉的风格是很高的,拉格朗日是稍后于欧拉的大数学家,从19岁起和欧拉通信,讨论等周问题的一般解法,这引起变分法的诞生.等周问题是欧拉多年来苦心考虑的问题,拉格朗日的解法,博得欧拉的热烈赞扬,1759年10月2日欧拉在回信中盛称拉格朗日的成就,并谦虚地压下自己在这方面较不成熟的作品暂不发表,使年青的拉格朗日的工作得以发表和流传,并赢得巨大的声誉.他晚年的时候,欧洲所有的数学家都把他当作老师,著名数学家拉普拉斯(Laplace)曾说过:"欧拉是我们的导师." 欧拉充沛的精力保持到最后一刻,1783年9月18日下午,欧拉为了庆祝他计算气球上升定律的成功,请朋友们吃饭,那时天王星刚发现不久,欧拉写出了计算天王星轨道的要领,还和他的孙子逗笑,喝完茶后,突然疾病发作,烟斗从手中落下,口里喃喃地说:"我死了",欧拉终于"停止了生命和计算". 欧拉的一生,是为数学发展而奋斗的一生,他那杰出的智慧,顽强的毅力,孜孜不倦的奋斗精神和高尚的科学道德,永远是值得我们学习的.欧拉在数学上的建树很多,对著名的哥尼斯堡七桥问题的解答开创了图论的研究。欧拉还发现 ,不论什么形状的凸多面体,其顶点数v、棱数e、面数f之间总有v-e+f=2这个关系。v-e+f被称为欧拉示性数,成为拓扑学的基础概念。在数论中,欧拉首先引进了重要的欧拉函数φ(n),用多种方法证明了费马小定理。以欧拉的名字命名的数学公式、定理等在数学书籍中随处可见, 与此同时,他还在物理、天文、建筑以至音乐、哲学方面取得了辉煌的成就。〔欧拉还创设了许多数学符号,例如π(1736年),i(1777年),e(1748年),sin和cos(1748年),tg(1753年),△x(1755年),∑(1755年),f(x)(1734年)等.Leonhard Euler (pronounced Oiler; IPA [ˈɔʏlɐ]) (April 15, 1707 – September 18 [O.S. September 7] 1783) was a pioneering Swiss mathematician and physicist, who spent most of his life in Russia and Germany. He published more papers than any other mathematician in history.[1]Euler made important discoveries in fields as diverse as calculus and topology. He also introduced much of the modern mathematical terminology and notation, particularly for mathematical analysis, such as the notion of a mathematical function.[2] He is also renowned for his work in mechanics, optics, and astronomy.Euler is considered to be the preeminent mathematician of the 18th century and one of the greatest of all time. He is also one of the most prolific; his collected works fill 60–80 quarto volumes.[3] A statement attributed to Pierre-Simon Laplace expresses Euler's influence on mathematics: "Read Euler, read Euler, he is a master for us all".[4]Euler was featured on the sixth series of the Swiss 10-franc banknote[5] and on numerous Swiss, German, and Russian postage stamps. The asteroid 2002 Euler was named in his honor. He is also commemorated by the Lutheran Church on their Calendar of Saints on May 24.Contents [hide]1 Biography 1.1 Childhood 1.2 St. Petersburg 1.3 Berlin 1.4 Eyesight deterioration 1.5 Last stage of life 2 Contributions to mathematics 2.1 Mathematical notation 2.2 Analysis 2.3 Number theory 2.4 Graph theory 2.5 Applied mathematics 2.6 Physics and astronomy 2.7 Logic 3 Philosophy and religious beliefs 4 Selected bibliography 5 See also 6 Notes 7 Further reading 8 External links [edit] Biography[edit] Childhood Swiss 10 Franc banknote honoring Euler, the most successful Swiss mathematician in history.Euler was born in Basel to Paul Euler, a pastor of the Reformed Church, and Marguerite Brucker, a pastor's daughter. He had two younger sisters named Anna Maria and Maria Magdalena. Soon after the birth of Leonhard, the Eulers moved from Basel to the town of Riehen, where Euler spent most of his childhood. Paul Euler was a family friend of the Bernoullis, and Johann Bernoulli, who was then regarded as Europe's foremost mathematician, would eventually be an important influence on the young Leonhard. His early formal education started in Basel, where he was sent to live with his maternal grandmother. At the age of thirteen he matriculated at the University of Basel, and in 1723, received a masters of philosophy degree with a dissertation that compared the philosophies of Descartes and Newton. At this time, he was receiving Saturday afternoon lessons from Johann Bernoulli, who quickly discovered his new pupil's incredible talent for mathematics.[6]Euler was at this point studying theology, Greek, and Hebrew at his father's urging, in order to become a pastor. Johann Bernoulli intervened, and convinced Paul Euler that Leonhard was destined to become a great mathematician. In 1726, Euler completed his Ph.D. dissertation on the propagation of sound with the title De Sono[7] and in 1727, he entered the Paris Academy Prize Problem competition, where the problem that year was to find the best way to place the masts on a ship. He won second place, losing only to Pierre Bouguer—a man now known as "the father of naval architecture". Euler, however, would eventually win the coveted annual prize twelve times in his career.[8][edit] St. PetersburgAround this time Johann Bernoulli's two sons, Daniel and Nicolas, were working at the Imperial Russian Academy of Sciences in St Petersburg. In July 1726, Nicolas died of appendicitis after spending a year in Russia, and when Daniel assumed his brother's position in the mathematics/physics division, he recommended that the post in physiology that he had vacated be filled by his friend Euler. In November 1726 Euler eagerly accepted the offer, but delayed making the trip to St Petersburg. In the interim he unsuccessfully applied for a physics professorship at the University of Basel.[9]1957 stamp of the former Soviet Union commemorating the 250th birthday of Euler. The text says: 250 years from the birth of the great mathematician and academician, Leonhard Euler.Euler arrived in the Russian capital on May 17, 1727. He was promoted from his junior post in the medical department of the academy to a position in the mathematics department. He lodged with Daniel Bernoulli with whom he often worked in close collaboration. Euler mastered Russian and settled into life in St Petersburg. He also took on an additional job as a medic in the Russian Navy.[10]The Academy at St. Petersburg, established by Peter the Great, was intended to improve education in Russia and to close the scientific gap with Western Europe. As a result, it was made especially attractive to foreign scholars like Euler: the academy possessed ample financial resources and a comprehensive library drawn from the private libraries of Peter himself and of the nobility. Very few students were enrolled in the academy so as to lessen the faculty's teaching burden, and the academy emphasized research and offered to its faculty both the time and the freedom to pursue scientific questions.[8]However, the Academy's benefactress, Catherine I, who had attempted to continue the progressive policies of her late husband, died the day of Euler's arrival. The Russian nobility then gained power upon the ascension of the twelve-year-old Peter II. The nobility were suspicious of the academy's foreign scientists, and thus cut funding and caused numerous other difficulties for Euler and his colleagues.Conditions improved slightly upon the death of Peter II, and Euler swiftly rose through the ranks in the academy and was made professor of physics in 1731. Two years later, Daniel Bernoulli, who was fed up with the censorship and hostility he faced at St. Petersburg, left for Basel. Euler succeeded him as the head of the mathematics department.[11]On January 7, 1734, he married Katharina Gsell, daughter of a painter from the Academy Gymnasium. The young couple bought a house by the Neva River, and had thirteen children, of whom only five survived childhood.[12][edit] Berlin Stamp of the former German Democratic Republic honoring Euler on the 200th anniversary of his death. In the middle, it is showing his polyhedral formula.Concerned about continuing turmoil in Russia, Euler debated whether to stay in St. Petersburg or not. Frederick the Great of Prussia offered him a post at the Berlin Academy, which he accepted. He left St.

245 评论

HazimiYoYo

因为我很懒不想写论文Because I'm lazy and i don't want to write a paper. 论文[lùn wén]名paper; thesis; dissertation; treatise; discourse

331 评论

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