matlab 画三维图z=(40/81*y+40/81)/y^2-(40/81*y+40/81)/y^3+(55/486*y+55/486)/y^4+14/81/y^3*(y+1)^2-7/81/y^4*(y+1)^2+7/243/y^4*(y+1)^3-92/9/y^2-1208/243/y^3-23/36/y^4+3800/243/y+311/486/x^4*(x+1)-34/27/x^4*(x+1)^2+152/243/x^4*(x+1)^3-1/162/x^4+10/x*
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/23 19:04:18
![matlab 画三维图z=(40/81*y+40/81)/y^2-(40/81*y+40/81)/y^3+(55/486*y+55/486)/y^4+14/81/y^3*(y+1)^2-7/81/y^4*(y+1)^2+7/243/y^4*(y+1)^3-92/9/y^2-1208/243/y^3-23/36/y^4+3800/243/y+311/486/x^4*(x+1)-34/27/x^4*(x+1)^2+152/243/x^4*(x+1)^3-1/162/x^4+10/x*](/uploads/image/z/10194817-49-7.jpg?t=matlab+%E7%94%BB%E4%B8%89%E7%BB%B4%E5%9B%BEz%3D%2840%2F81%2Ay%2B40%2F81%29%2Fy%5E2-%2840%2F81%2Ay%2B40%2F81%29%2Fy%5E3%2B%2855%2F486%2Ay%2B55%2F486%29%2Fy%5E4%2B14%2F81%2Fy%5E3%2A%28y%2B1%29%5E2-7%2F81%2Fy%5E4%2A%28y%2B1%29%5E2%2B7%2F243%2Fy%5E4%2A%28y%2B1%29%5E3-92%2F9%2Fy%5E2-1208%2F243%2Fy%5E3-23%2F36%2Fy%5E4%2B3800%2F243%2Fy%2B311%2F486%2Fx%5E4%2A%28x%2B1%29-34%2F27%2Fx%5E4%2A%28x%2B1%29%5E2%2B152%2F243%2Fx%5E4%2A%28x%2B1%29%5E3-1%2F162%2Fx%5E4%2B10%2Fx%2A)
matlab 画三维图z=(40/81*y+40/81)/y^2-(40/81*y+40/81)/y^3+(55/486*y+55/486)/y^4+14/81/y^3*(y+1)^2-7/81/y^4*(y+1)^2+7/243/y^4*(y+1)^3-92/9/y^2-1208/243/y^3-23/36/y^4+3800/243/y+311/486/x^4*(x+1)-34/27/x^4*(x+1)^2+152/243/x^4*(x+1)^3-1/162/x^4+10/x*
matlab 画三维图
z=(40/81*y+40/81)/y^2-(40/81*y+40/81)/y^3+(55/486*y+55/486)/y^4+14/81/y^3*(y+1)^2-7/81/y^4*(y+1)^2+7/243/y^4*(y+1)^3-92/9/y^2-1208/243/y^3-23/36/y^4+3800/243/y+311/486/x^4*(x+1)-34/27/x^4*(x+1)^2+152/243/x^4*(x+1)^3-1/162/x^4+10/x*(1/9/x^2*(x+1)^2-(1/9*x+1/9)/x^2)+5/y*(4/9*y+2/9/y*(y+1)^2-(2/9*y+2/9)/y+1/27/y^2*(y+1)^3-1/18/y^2*(y+1)^2+1/54/y^2*(y+1))-4/27/y^2*(y+1)+(4/27*y+4/27)/y^3-(11/324*y+11/324)/y^4
其中x,y,属于整数.画出它们的3D图来,可以设置m,n属于【1 20】
我想看:(x,y)的变化对z的影响
matlab 画三维图z=(40/81*y+40/81)/y^2-(40/81*y+40/81)/y^3+(55/486*y+55/486)/y^4+14/81/y^3*(y+1)^2-7/81/y^4*(y+1)^2+7/243/y^4*(y+1)^3-92/9/y^2-1208/243/y^3-23/36/y^4+3800/243/y+311/486/x^4*(x+1)-34/27/x^4*(x+1)^2+152/243/x^4*(x+1)^3-1/162/x^4+10/x*
程序给你你自己观察吧.
for i=1:20
for j=1:20
x=i;
y=j;
z=(40/81*y+40/81)/y^2-(40/81*y+40/81)/y^3+(55/486*y+55/486)/y^4+14/81/y^3*(y+1)^2-7/81/y^4*(y+1)^2+7/243/y^4*(y+1)^3-92/9/y^2-1208/243/y^3-23/36/y^4+3800/243/y+311/486/x^4*(x+1)-34/27/x^4*(x+1)^2+152/243/x^4*(x+1)^3-1/162/x^4+10/x*(1/9/x^2*(x+1)^2-(1/9*x+1/9)/x^2)+5/y*(4/9*y+2/9/y*(y+1)^2-(2/9*y+2/9)/y+1/27/y^2*(y+1)^3-1/18/y^2*(y+1)^2+1/54/y^2*(y+1))-4/27/y^2*(y+1)+(4/27*y+4/27)/y^3-(11/324*y+11/324)/y^4;
a(i,j)=z;
end
end
surf(a)