• 2021-04-14
    已知函数文件fx.m:()function()f=fx(x)()f=2*x.^2+5*x-1;()则求f(x)=2x2+5x-1=0在x0=-2附近根的命令是()。A.()z=fzero(fx,0.5)()B.()z=fzero(@fx,0.5)()C.()z=fzero(fx,-2);()D.()z=fzero(@fx,-2);