matlab 三维指数作图 exp(急)求用matlab作图:y1在(0,-5]区间,y2在(0,+5]区间.作图:z=-y1*exp(y1+y1*y2)我用了:>> y1=0:-0.1:-5;y2=0:0.1:5;>> [Y1,Y2]=meshgrid(y1,y2);>> z=-y1.*exp(y1.+y1.*y2);>> mesh(Y1,Y2,z)但出现了错
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![matlab 三维指数作图 exp(急)求用matlab作图:y1在(0,-5]区间,y2在(0,+5]区间.作图:z=-y1*exp(y1+y1*y2)我用了:>> y1=0:-0.1:-5;y2=0:0.1:5;>> [Y1,Y2]=meshgrid(y1,y2);>> z=-y1.*exp(y1.+y1.*y2);>> mesh(Y1,Y2,z)但出现了错](/uploads/image/z/3699738-18-8.jpg?t=matlab+%E4%B8%89%E7%BB%B4%E6%8C%87%E6%95%B0%E4%BD%9C%E5%9B%BE+exp%EF%BC%88%E6%80%A5%EF%BC%89%E6%B1%82%E7%94%A8matlab%E4%BD%9C%E5%9B%BE%EF%BC%9Ay1%E5%9C%A8%280%2C-5%5D%E5%8C%BA%E9%97%B4%2Cy2%E5%9C%A8%EF%BC%880%2C%2B5%5D%E5%8C%BA%E9%97%B4.%E4%BD%9C%E5%9B%BE%EF%BC%9Az%3D-y1%2Aexp%28y1%2By1%2Ay2%29%E6%88%91%E7%94%A8%E4%BA%86%EF%BC%9A%3E%3E+y1%3D0%3A-0.1%3A-5%3By2%3D0%3A0.1%3A5%3B%3E%3E+%5BY1%2CY2%5D%3Dmeshgrid%28y1%2Cy2%29%3B%3E%3E+z%3D-y1.%2Aexp%28y1.%2By1.%2Ay2%29%3B%3E%3E+mesh%28Y1%2CY2%2Cz%29%E4%BD%86%E5%87%BA%E7%8E%B0%E4%BA%86%E9%94%99)
matlab 三维指数作图 exp(急)求用matlab作图:y1在(0,-5]区间,y2在(0,+5]区间.作图:z=-y1*exp(y1+y1*y2)我用了:>> y1=0:-0.1:-5;y2=0:0.1:5;>> [Y1,Y2]=meshgrid(y1,y2);>> z=-y1.*exp(y1.+y1.*y2);>> mesh(Y1,Y2,z)但出现了错
matlab 三维指数作图 exp(急)
求用matlab作图:
y1在(0,-5]区间,y2在(0,+5]区间.作图:z=-y1*exp(y1+y1*y2)
我用了:
>> y1=0:-0.1:-5;y2=0:0.1:5;
>> [Y1,Y2]=meshgrid(y1,y2);
>> z=-y1.*exp(y1.+y1.*y2);
>> mesh(Y1,Y2,z)
但出现了错误.为什么么呢?请给个正解,
matlab 三维指数作图 exp(急)求用matlab作图:y1在(0,-5]区间,y2在(0,+5]区间.作图:z=-y1*exp(y1+y1*y2)我用了:>> y1=0:-0.1:-5;y2=0:0.1:5;>> [Y1,Y2]=meshgrid(y1,y2);>> z=-y1.*exp(y1.+y1.*y2);>> mesh(Y1,Y2,z)但出现了错
z=-y1.*exp(y1.+y1.*y2);这一句不应该是小写的y,因为y1,y2,通过[Y1,Y2]=meshgrid(y1,y2);这句命令已经构造成矩阵赋给了Y1,Y2(大写),你们接下来的运算都是针对Y1,Y2.而不是y.所以为 z=-Y1.*exp(y=Y1.+Y1.*Y2).
[Y1,Y2]=meshgrid(y1,y2) 这句命令的具体含义我给你解释一下.功能在于构造平面坐标系
比如x=[1 2 3],y=[1 2],那么[X,Y]=meshgrid(x,y),得到的结果是:X=[1 2 3;1 2 3]以x为行,y的个数为行数.,Y=[1 11 ;2 2 2;]以y为列,x的个数为列数.明白了吗?