无忧论文网始建于1999年,提供专业论文格式,包括毕业论文,硕士论文,博士论文,留学生论文,essay,职称发表论文等的专业论文网站,热线咨询电话:4006227154
无忧论文网

登陆注册 论文购物车

论文搜索 热门搜索: 论文网 毕业论文 mba论文 英语论文 工商管理 英语经济 社会经济 留学论文

二次函数在工程建设中的简单应用The Simple Application of Quadratic Function in Engineering Construction

日期:2017/8/28作者:www.51lunwen.com编辑:anne点击次数:265
销售价格:免费论文论文编号:lw201708272356279904论文字数:1229 
论文属性:本科预科课程作业论文地区:美国论文语种:English 

关于IB数学的第一个术语就是二次方程式。二次方程是单个变量x中的二阶多项式方程。张(2011)提出,二次函数是一个重要的数学模型,用于描述现实世界中的变量与某一单变量的优化模型之间的关系。在二次函数的研究中,我们可以在数学的每个方面了解其广泛的联系和应用价值。功能起源于现实。由于二次函数与实际生活密切相关,因此通过二次函数解决现实世界中的问题非常重要。关键是如何将实际问题转化为数学问题。 (Fletcher,2013)
The first term that I come to know about IB Mathematics is Quadratic. A quadratic equation is a second-order polynomial equation in a single variable x. According to Zhang (2011), a quadratic function is an important mathematical model to describe the relationship between variables in the real world and also the optimized model for a certain univariate. In the study of quadratic functions, we can get to know its broad connections and application values in each aspect of math. A function originates from the real life which also serves for the reality in return. Since the quadratic function is closely related with the actual life, it seems very significant to solve problems in the real world by the way of the quadratic function. The key is how to translate the actual problems into mathematical questions. (Fletcher, 2013)    

二次功能已被广泛应用于建筑行业。 (Belegundu&Tirupathi,2011)在本文中,我们将讨论通过二次函数解决工程中的实际问题的极端。当我们解决这个问题的时候,我们可以尝试把关于实际问题的极端问题变成一个关于二次函数极值的问题,然后通过求解二次函数的方法得到答案。无论如何,我们需要意识到这个问题。以下是旅游项目建设中二次函数的简单应用实例。Quadratic function has been widely used in the actual production and life especially in the engineering construction. (Belegundu & Tirupathi, 2011) In this paper we are going to discuss the extremum in solving practical problems in engineering construction by the way of quadratic function. When we solve the problem, we can try to change the question about extremum of the actual problem into question about the extremum of a quadratic function, and then get the answer by the method of solving quadratic function. Moreover, we must pay attention to that the answer should conform to the need of actual problem. The following is a simple application example of quadratic function in tourism project construction. 

The problem is listed as follows. A tourist resort wants to develop a mountain landscape. As measured from the side of the mountain,the head on hillside line ABC is composed of two segments of parabolas in the same plane. The parabola AB goes downwards with point A as its vertex, and the parabola BC goes upwards with point C as its vertex. Take the horizontal line at the foot of the mountain (point C) as the X axis, and take the plumb line across the top of the mountain (point A) as the Y axis to set up rectangular plane coordinate system as shown in the graph (Unit: hundreds of meters). Given the analytic expression of AB parabola is , the analytic expression of BC parabola is , and point .

 (1) Assume that   is an arbitrary point on the line AB, and y represents x. Solve the coordinates of point B.

 (2)Lay down viewing steps from the mountaintop down to the hill along the hillside line. For these steps, the height of each step is 20 centimeters


本文源自:无忧论文网转载保留版权
源头地址:http://www.51lunwen.com/dxassignment/2017/0827/lw201708272356279904.html

123

会员登录

邮件:

密码:

会员老师编辑帮助

论文相关搜索



论文财富计划,发表论文赚钱