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Two years of mathematics, book one, observing objects 2, which picture does Xiao Gan see with V in brackets?
What picture did Xiao Gan see as the object of mathematical observation for two years? When standing in different positions to observe the same object, the shape and size of the object we observe are different.

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Mathematics is a science that studies quantitative relations and spatial forms. Mathematics originates from the abstraction of the real world. Through the abstraction of quantity and quantity relationship, graph and graph relationship, the research object of mathematics and its relationship are obtained.

Based on abstract structure, mathematical conclusions and methods are formed through symbolic operation, formal reasoning and model construction of the research object, which helps people to know, understand and express the essence, relationship and law of the real world.

Mathematics is not only a tool for operation and reasoning, but also a language for expression and communication. Mathematics carries thoughts and culture and is an important part of human civilization. Mathematics is an important foundation of natural science and plays an increasingly important role in social science.

The application of mathematics permeates all aspects of modern society, directly creating value for society and promoting the development of social productive forces. With the development of big data analysis and artificial intelligence, the fields of mathematical research and application are expanding.

Mathematics is a science that studies quantitative relations and spatial forms in the real world. Simply put, it is the science of studying numbers and shapes. Due to the needs of life and labor, even the most primitive people know simple counting, and it has developed from counting with fingers or objects to counting with numbers.

Mathematical attribute is the measurable attribute of anything, that is, mathematical attribute is the most basic attribute of things. The existence of measurable attributes has nothing to do with parameters, and the result depends on the selection of parameters.

For example, time, whether measured in years, months, days or hours, minutes and seconds; Space, whether measured in meters, microns, inches or light years, always has their measurable properties, but the accuracy of the results is related to these reference coefficients.

Mathematics is a universal means for human beings to strictly describe the abstract structure and mode of things, and can be applied to any problem in the real world. All mathematical objects are artificially defined in essence.

In this sense, mathematics belongs to formal science, not natural science. Different mathematicians and philosophers have a series of views on the exact scope and definition of mathematics.