origin高手进y=a1+a2ln(1+a3x)y:72.14 70.74 66.74 63.44 55.72 50.87 48.99 45.77 37.87 x: 0 0.00001 0.000025 0.00005 0.0001 0.00015 0.0002 0.00025 0.0005拟合求a1 a2 a3
网友回答
就求这三个参数吗?a1=72.94167,a2= -14.26585.a3=22276.92263
拟合效果,看图
origin高手进y=a1+a2ln(1+a3x)y:72.14 70.74 66.74 63.44 55.72 50.87 48.99 45.77 37.87 x: 0 0.00001 0.000025 0.00005 0.0001 0.00015 0.0002 0.00025 0.0005拟合求a1 a2 a3(图1)