最小二乘法拟合是一种曲线拟合方法，它不要求近似曲线过已知点，只要求尽可能反应数据点的基本趋势。这是它的C语言程序-Least square method is a curve fitting method, which does not require similar curves have been known, the only response to the extent possible, the basic trend of data points. This is the C lan