想用matlab画y^2+x^2+x*y-x=0的图,请问实现代码是怎样的呀?x,y都在[-10,

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? matlab怎么设置x^2+y^2 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如何画z=x^2+y^2,z 想用matlab画y^2+x^2+x*y-x=0的图,请问实现代码是怎样的呀?x,y都在[-10, matlab如何画y=4/x^2的图像? 如何用Matlab画y=5/(x^2+0.5) matlab画曲面(x^2+y^2)^2=x^2-y^2 求用matlab画三维 x^2+y^2+x*y-2=0图形 如何用matlab画f(x,y)函数图象? f(x,y)=x^2-y+1 2y=erfc+exp(0.1*x)*erfc用matlab画y关于x的图像 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 用MATLAB 怎么 画 x = (y/4)*Sqrt[2 - y^2]用MATLAB 怎么画函数x = (y/4)*Sqrt[2 - y^2]的图. y=(1+x)/x^2,用matlab怎么画图 MATLAB绘制y=x-x^2/3 matlab画三维函数z=(x-2)(50-2x+y)-y^2-18 x>0 ,y>0用matlab怎么画出图像 (用matlab画相平面图)x'=2x+3y,y'=2x+y,x(0)=-2.7,y(0)=2.8 0 matlab y=[ ]; x=0:0.1:2; y=[y,cos(x)]; plot(x,y) 其中y=[ ]和y=[y,cos(x)]; 啥意