matlab画二元方程 x^2+(y-(x^2)^(1/3))^2=1

matlab画二元方程 x^2+(y-(x^2)^(1/3))^2=1 用matlab解二元二次方程求方程x^2+y^2=1,x*y=2的解 求matlab画二元函数图象：(sqrt(1-y^2)-sqrt(1-x^2))*(x+y) (0要那个matlab编码 MATLAB二元函数求极值小弟一方程：f=x^2+2*x-3*y+y^2,x范围2~6,y范围4~7,求f最小值,用MATLAB编程怎么做? 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 用matlab画二元二次函数x^2-0.238769*x*y-9.330594*y^2+0.051724*x+7.223425*y-77.616104=0; 需要画出这个圆锥曲线, 解方程x-2y=45解二元一次方程 急用matlab求二元三次方程组及程序代码!方程：-100/x^2/y+17/40/x^3/y^2+7505627081381631/9007199254740992/x^2=0,-100/x/y^2+17/40/x^2/y^3=0我输入 clear;>> syms x y;>> [x,y]=solve('-100/x^2/y+17/40/x^3/y^2+7505627081381631/900719925474 如何求这个二元三次方程组精确解?用matlab他说没有显式解.方程：-100/x^2/y+17/40/x^3/y^2+7505627081381631/9007199254740992/x^2=0,-100/x/y^2+17/40/x^2/y^3=0我输入 clear;>> syms x y;>> [x,y]=solve('-100/x^2/y+17/40/x^3/y^2+7505 怎么用matlab画指定定义域内的二元函数图像z=f(x,y),(x,y)={1 如何用matlab解二元方程[x,y]=solve('1351.565-14.85*13-379.25*x-1.025*y.^2-27.25*y = 0','222.5-2.7*13-27.75*x-0.45*y.^2-2.05*x*y-0.36*13*y=0','x','y')Error using ==> solve>getEqns at 182' 1351.565-14.85*13-379.25*x-1.025*y.^2-27.25*y = 0 ' is n （x+2)(y-4)=xy算什么方程是二元一次 还是二元二次啊? matlab怎么画方程曲面x^2+y^2+z^2=4球面怎么画 Matlab 如何画如下这个方程图x^2+y^2-z^2=4 用matlab如何画马鞍面,方程：Z=x^2-y^2 解方程,二元二次x-2y=-1{ x:y=y:3 matlab 二元非线性方程请问解二元非线性次方程该如何求解?可以用solve吗?eg:1.35-3*x^(1/6)*sqrt(y)=130.5*pi^2*(x+ y^3)=20 理论上来说这个非线性方程有几组解!谢谢（例子是我乱编的,也许解不出来）!我