English Title

The principle of least squares curve fitting, and combined with MATLAB Application in

actual case

Chongqing jiaotong university institute of civil engineering, the 400074

Abstract

With the progress of human cognition and the rapid development of computing technology, for the unknown relationship between variables, curve fitting method is applied to reveal the inherent law has important theoretical and practical significance. In the scientific experiment data processing, analysis, experimental data fitting is one of the frequently used methods. This article will use the least square method to fit the given experimental data merging to get fitting curve, deepen everyone understanding of the principle of the least squares curve fitting. Will according to the theory of least squares fitting at the same time, and use the MATLAB numerical analysis software, programming to solve the least squares curve fitting in the tower crane lifting weight the application of the monitoring system problem, implement the corresponding case data curve fitting, the curve model fitting curve of corresponding data, to solve the problem of the engineering case of curve fitting.

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