{"title":"在几何学中支持虚数","authors":"A. Girsh","doi":"10.12737/2308-4898-2020-33-40","DOIUrl":null,"url":null,"abstract":"“Complex numbers are something complicated”, as they are perceived in most cases. The expression “real numbers are also complex numbers” sounds strange as well. And for all that complex numbers are good for many areas of knowledge, since they allow solve problems, that are not solved in the field of real numbers. First and most important is that in the field of complex numbers all algebraic equations are solved, including the equation x2 + a = 0, which has long been a challenge to human thought. In the field of complex numbers, the problem solutions remain free from listing special cases in the form of \"if ... then\", for example, solving the problem for the intersection of the line g with the circle (O, r) always gives two points. And in the field of real numbers, three cases have to be distinguished: \n| Og | r → there is no intersection; \n| Og | = r → there is one double point. \nThe benefit of complex numbers also lies in the fact that with their help not only problems that previously had no solutions are solved, they not only greatly simplify the solution result, but they also hold shown in this text further amazing properties in geometric figures, and open door to the amazing and colorful world of fractals.","PeriodicalId":12604,"journal":{"name":"Geometry & Graphics","volume":"20 12","pages":"33-40"},"PeriodicalIF":0.0000,"publicationDate":"2020-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"In Favor of Imaginaries in Geometry\",\"authors\":\"A. Girsh\",\"doi\":\"10.12737/2308-4898-2020-33-40\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"“Complex numbers are something complicated”, as they are perceived in most cases. The expression “real numbers are also complex numbers” sounds strange as well. And for all that complex numbers are good for many areas of knowledge, since they allow solve problems, that are not solved in the field of real numbers. First and most important is that in the field of complex numbers all algebraic equations are solved, including the equation x2 + a = 0, which has long been a challenge to human thought. In the field of complex numbers, the problem solutions remain free from listing special cases in the form of \\\"if ... then\\\", for example, solving the problem for the intersection of the line g with the circle (O, r) always gives two points. And in the field of real numbers, three cases have to be distinguished: \\n| Og | r → there is no intersection; \\n| Og | = r → there is one double point. \\nThe benefit of complex numbers also lies in the fact that with their help not only problems that previously had no solutions are solved, they not only greatly simplify the solution result, but they also hold shown in this text further amazing properties in geometric figures, and open door to the amazing and colorful world of fractals.\",\"PeriodicalId\":12604,\"journal\":{\"name\":\"Geometry & Graphics\",\"volume\":\"20 12\",\"pages\":\"33-40\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-08-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Geometry & Graphics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.12737/2308-4898-2020-33-40\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Geometry & Graphics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.12737/2308-4898-2020-33-40","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
摘要
在大多数情况下,“复数是复杂的东西”。“实数也是复数”这句话听起来也很奇怪。尽管复数在很多知识领域都很有用,因为它们可以解决在实数领域无法解决的问题。首先也是最重要的是,在复数领域,所有的代数方程都得到了解决,包括x2 + a = 0的方程,这一直是对人类思维的挑战。在复数领域,问题的解决方案仍然没有以“if…”的形式列出特殊情况。那么,例如,解直线g与圆(O, r)的交点问题总是给出两个点。而在实数领域中,有三种情况必须加以区分:| Og | r→无交集;| Og | = r→有一个双点。复数的好处还在于,在它们的帮助下,不仅解决了以前没有解的问题,而且大大简化了解的结果,而且在本文中还展示了几何图形的进一步惊人性质,并打开了通往神奇而丰富多彩的分形世界的大门。
“Complex numbers are something complicated”, as they are perceived in most cases. The expression “real numbers are also complex numbers” sounds strange as well. And for all that complex numbers are good for many areas of knowledge, since they allow solve problems, that are not solved in the field of real numbers. First and most important is that in the field of complex numbers all algebraic equations are solved, including the equation x2 + a = 0, which has long been a challenge to human thought. In the field of complex numbers, the problem solutions remain free from listing special cases in the form of "if ... then", for example, solving the problem for the intersection of the line g with the circle (O, r) always gives two points. And in the field of real numbers, three cases have to be distinguished:
| Og | r → there is no intersection;
| Og | = r → there is one double point.
The benefit of complex numbers also lies in the fact that with their help not only problems that previously had no solutions are solved, they not only greatly simplify the solution result, but they also hold shown in this text further amazing properties in geometric figures, and open door to the amazing and colorful world of fractals.