matlab画y=2x^2/(x^2-1)的图

y=(1+x)/x^2,用matlab怎么画图 matlab画二元函数图像z = (x/(x+y) + 1.96*1.96/(2*(x+y)) - 1.96 * ((x/(x+y)*(1-x/(x+y))+1.96*1.96/(4*(x+y)))/(x+y))^0.5)/(1+1.96*1.96/(x+y))该怎么画 matlab 2x+y+3z=13x-y=-1y+z=5用 MATLAB软件 MATLAB软件 MATLAB软件 MATLAB软件 MATLAB软件 MATLAB软件 如何用matlab画f(x,y)函数图象? f(x,y)=x^2-y+1 用matlab画z=(x-y)^0.5+(x+y)^0.5 和z=ln(y-x)+x^0.5/(1-x^2-y^2)^0.5 matlab如何画z=x^2+y^2,z matlab如何画y=4/x^2的图像? 如何用Matlab画y=5/(x^2+0.5) matlab中x = fix(y(:,1)*(2^(nbits-1))); MATLAB y=(x.*sinx)./(1+(cosx.^2)); matlab 编下程求y=100/(1+x^2)曲线图... matlab画二元方程 x^2+(y-(x^2)^(1/3))^2=1 matlab画y=2x^2/(x^2-1)的图 如何用MATLAB画y=2*x*(1-x^2).^0.5 (0 怎样用matlab画函数y=2x/(1+x^2) 用Matlab画y=sqrt(x^4+1)-10x^2 的图像 MATLAB绘制y=x-x^2/3 matlab画几个二元函数x*y/(x^2+y^2)^0.51/(x+y)x*y/(x+y)1/(x*y)sin(x+y)sin(x*y)sin(x)+sin(y)这么多,回答了再加分怎么设置上下限?