3^x=x+4;
解得
x = Log[3,x + 4];
令x=1;重复10次得
1.46497,
1.54591,
1.5593,
1.56149,
1.56185,
1.56191,
1.56192,
1.56192,
1.56192,
于是
x=1.56192
3^x=x+4;
解得
x = Log[3,x + 4];
令x=1;重复10次得
1.46497,
1.54591,
1.5593,
1.56149,
1.56185,
1.56191,
1.56192,
1.56192,
1.56192,
于是
x=1.56192