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数列起源于古希腊毕达哥拉斯(约公元前570-约公元前500年)学派的数学家经常在沙滩上研究数学问题,他们在沙滩上画点或用小石子来表示数。比如,他们研究过1,3,6,10,15,21,28,36,45,55,66,78,91…由于这些数可以用如右图所示的三角形点阵表示,他们就将其称为三角形数。在我们的日常生活中,会遇到如存款利息、购房贷款、资产折旧等一些计算问题,数理模型可以帮助我们解决这类问题。学习数列知识对进一步理解函数的概念和体会数学的应用价值具有重要的意义。
Mathematicians who originated in the ancient Greek Pythagoreans (about 570 BC - about 500 BC) have often studied math problems on the beach, drawing points on the beach or using small stones to represent numbers. For example, they studied 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91 ... Since these numbers can be represented by a triangular lattice as shown on the right, It is called the number of triangles. In our daily life, we encounter some calculation problems such as interest on deposits, purchase loans, depreciation of assets, etc. Mathematical models can help us to solve such problems. Learning sequence knowledge is of great significance to further understand the concept of function and to realize the application value of mathematics.