help!!! with plot
1 次查看(过去 30 天)
显示 更早的评论
clear all
a=200;b=5;cm=10;cr=3;v=600;k=6;u=0.1;s=0.2;e=2;cp=2;t=1;
pr=1:10;
r=-(pr*u*(b*cm - a + cp*e*k + b*cp*e*t))/(8*v + 2*b*pr.^2*u - 2*b*cm*pr*u + 2*b*cr*pr*u - 2*b*pr.^2*s*u);
plot(r)
Why just plot a point, not a line?
0 个评论
采纳的回答
Image Analyst
2019-12-24
编辑:Image Analyst
2019-12-24
Because you used slash (matrix division) instead of dot slash (element-by-element division). Try it this way:
clear all
a=200;
b=5;
cm=10;
cr=3;
v=600;
k=6;
u=0.1;
s=0.2;
e=2;
cp=2;
t=1;
pr=1:10;
r=-(pr*u*(b*cm - a + cp*e*k + b*cp*e*t)) ./ (8*v + 2*b*pr.^2*u - 2*b*cm*pr*u + 2*b*cr*pr*u - 2*b*pr.^2*s*u);
plot(r, 'bs-', 'LineWidth', 2)
grid on;
0 个评论
更多回答(2 个)
Bhaskar R
2019-12-24
MATLAB operator "/" performs linear equation solver, apply dot elemetwise(./) division
clear;
a=200;b=5;cm=10;cr=3;v=600;k=6;u=0.1;s=0.2;e=2;cp=2;t=1;
pr=1:10;
r=-(pr*u*(b*cm - a + cp*e*k + b*cp*e*t))./(8*v + 2*b*pr.^2*u - 2*b*cm*pr*u + 2*b*cr*pr*u - 2*b*pr.^2*s*u);
plot(r)
0 个评论
KSSV
2019-12-24
a=200;b=5;cm=10;cr=3;v=600;k=6;u=0.1;s=0.2;e=2;cp=2;t=1;
pr=1:10;
r=-(pr*u*(b*cm - a + cp*e*k + b*cp*e*t))./(8*v + 2*b*pr.^2*u - 2*b*cm*pr*u + 2*b*cr*pr*u - 2*b*pr.^2*s*u);
plot(r)
Element by element divison is needed.
/ is replaced with ./.
0 个评论
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!