已知三组数据,怎样求二元一次方程的参数abc,y=0.0606,0.0576,0.0546x=0.02,0.04,0.07
2019-04-13
已知三组数据,怎样求二元一次方程的参数abc,
y=0.0606,0.0576,0.0546
x=0.02,0.04,0.07
优质解答
二元一次方程应该是AX2+BX+C=Y,把X,Y值分别带入,获得第一个方程0.02*0.02A+0.02B+C=0.0606,第二个方程0.04*0.04A+0.04B+C=0.0576,第三个方程0.07*0.07A+0.07B+C=0.0546解这三个方程就好
二元一次方程应该是AX2+BX+C=Y,把X,Y值分别带入,获得第一个方程0.02*0.02A+0.02B+C=0.0606,第二个方程0.04*0.04A+0.04B+C=0.0576,第三个方程0.07*0.07A+0.07B+C=0.0546解这三个方程就好