Traditional Culture Encyclopedia - Traditional stories - Extreme operation
Extreme operation
When solving problems with the concept of limit, we should first establish a function (calculation formula) with traditional thinking and constant thinking of' low mathematical thinking', then try to deform the total area of the image and find out the limit of a corresponding variable, so that the problem can be solved. Finding the limit value in this "identity" transformation is an important move for mathematics to be applied to the calculation of actual variables. The above-mentioned partial sum method, average velocity method and regular polygon inscribed circle area method are the most accurate approximation methods among infinite series corresponding approximation value, instantaneous velocity method and circle area method respectively. Using the limit idea, we can get the corresponding extremely accurate conclusion value. This is all with the help of extreme thinking method, and people can also achieve accurate calculation results through' infinite approximation'. This new method, the limit idea of calculus, can satisfactorily solve the problem of' directly using constant method to calculate variable function, but there is no ready-made formula available, and the calculation result has a big error'.
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