立方根怎么算
如果一个数的立方等于a，那么这个数叫a的立方根，也称为三次方根。也就是说，如果x³=a，那么x叫做a的立方根。注意：在平方根中的根指数2可省略不写，但立方根中的根指数3不能省略不写。举例说明如下：2的立方等于8，所以8的立方根是2。扩展资料立方根的性质：（1）在实数范围内，任何实数的立方根只有一个（2）在实数范围内，负数不能开平方，但可以开立方。（3）0的立方根是0（4）立方和开立方运算，互为逆运算。（5）在复数范围内，任何非0的数都有且仅有3个立方根（一实根，二共轭虚根），它们均匀分布在以原点为圆心，算术根为半径的圆周上，三个立方根对应的点构成正三角形。（6）在复数范围内，负数既可以开平方，又可以开立方。
1849年的大事记
德国化学家斐林发明斐林试剂。2月8日——新罗马共和国建国。4月14日——匈牙利议会通过《独立宣言》，废除哈布斯堡王朝的统治，宣布匈牙利独立。4月27日 - 纠泽佩·马志尼进入罗马协助抵抗法军。6月5日 - 丹麦成为君主立宪制的国家。7月3日 - 法军攻占罗马,罗马共和国投降。7月31日——瑟克什堡战役（Battle of Segesvar），裴多菲牺牲。8月24日——威尼斯共和国被奥地利灭亡。9月27日——科马罗姆要塞陷落，匈牙利革命最终失败。匈牙利一八四八年革命的失败标志着欧洲1848年革命告终。葡萄牙武力抢占澳门半岛。
简述德意志帝国宪法的主要内容和特点？
1、积极性：①宪法的颁布巩固了国家统一，将革命成果用法律的形式巩固下来。②宪法的颁布使德意志帝国建立了君主立宪政体，标志着德国迈入资本主义时期，是德国社会的一大进步。③在帝国政府的保护下，有利于德国资本主义的迅速发展，并使德国跻身世界强国之列。④宪法的颁布对欧亚一些国家的宪法，特别是日本帝国宪法有很大影响。
2、局限性：①保留了很多封建专制主义残余，皇帝拥有极大的权力，议会无实权，广大民众并未获得多少实际的政治权利。②保留了普鲁士的军国主义传统，最终导致德国引起两次世界大战，给世界人民带来深重灾难。③阻碍了民主政治改革的彻底完成。
宪法内容太多。。
1、普鲁士王国通过三次自上而下王朝战争，逐渐统一德意志。1871年1月统一的德意志帝国宣告成立，为宪法的颁布提供了政权基础。
2、德国资本主义发展水平比较低，资产阶级力量比较弱小，而封建容克贵族和军阀势力强大。在统一战争中，资产阶级没有能充当领导地位，而充当领导地位的是容克贵族。
3、启蒙思想在德意志的广泛传播，为宪法的颁布提供了一定思想基础。
求德意志帝国宪法（1849年）英文内容
Paulskirchenverfassung:
The so-called Paulskirchenverfassung (Constitution of St. Paul's Church, Frankfurt) of 1849 was the first constitution of a German Empire (German Empire usually being associated with the Empire founded by Bismarck in 1871), and as such was actually titled Verfassung des Deutschen Reiches (Constitution of the German Empire). It was proclaimed by the Frankfurt Parliament, during its meeting in the Paulskirche church on 27 March 1849, and came in effect on 28 March,[1] when it was published in the Reichs-Gesetz-Blatt 1849, p. 101-147.
Thus, a united German Empire, as successor to the German Confederation, had been founded de jure.[citation needed] De facto, though, most Princes on German soil were not willing to give up sovereignty and resisted it, so it did not succeed on land, with the German Confederation being restored a year later. On the other hand, this first and democratic German Empire, with its small Reichsflotte navy founded a year earlier, fought the First War of Schleswig at sea with the Battle of Heligoland. The fleet's black-red-gold war ensign was one of the first instances of the official use of the Flag of Germany.
After long and controversial negotiations, the parliament had passed the complete Imperial Constitution on 27 March 1849. It was carried narrowly, by 267 against 263 votes. The version passed included the creation of a hereditary emperor (Erbkaisertum), which had been favoured mainly by the erbkaiserliche group around Gagern, with the reluctant support of the Westendhall group around Heinrich Simon. On the first reading, such a solution had been dismissed. The change of mind came about because all alternative suggestions, such as an elective monarchy, or a Directory government under an alternating chair were even less practicable and unable to find broad support, as was the radical left's demand for a republic, modelled on the United States.
The people were to be represented by a bicameral parliament, with a directly elected Volkshaus (House of commons), and a Staatenhaus (House of States) of representatives sent by the individual confederated states. Half of each Staatenhaus delegation was to be appointed by the respective state government, the other by the state parliament.
The constitution's text opens with § 1 Sentence 1: „Das deutsche Reich besteht aus dem Gebiete des bisherigen deutschen Bundes.“ (The German Empire consists of the area of the German Confederation).
