利用Origin软件中自定义函数功能,进行了多自变量多参数曲线拟合,从而讨论利用该功能提取未知参数的方法.通过对利用该功能对核物理中丰中子核对称能提取的研究表明,该方法得到的结果合理,并且操作容易,具有很好的实用价值.
Using the multi-arguments and multi-parameters function defined by user, the non-linear curve fitting function in the Origin software is discussed. In the solving of problem in extracting the symmetry energy for neutron-rich nuclei in nuclear physics, it's shown that the method is reasonable and easy to operate.