Error with plotting my function

1 次查看（过去 30 天）
Ethan Bales
Ethan Bales 2021-9-18
评论： Star Strider 2021-9-18
Having issues getting my nonlinear function to plot.
f = @(x) 2.^x-5*x+2; %Given Function
xaxis = [0:0.5:2]; %x-axis
plot(xaxis,f) %plotting function //DOESN'T WORK
  2 个评论
Jan
Jan 2021-9-18
"Doesn't work" does not explain the problem. You get an error message:
Error using plot
Invalid data argument.
This is an important hint. The 2nd input is a function handle, but Matlab expect numerical values.
For a solution see Star Strider's answer.
Ethan Bales
Ethan Bales 2021-9-18
yeah sorry about that. This is my first time using a forum like this and I'm still relatively new to coding. Thanks for insight!

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Star Strider
Star Strider 2021-9-18
Ran in:
It works if you give ‘f’ a vector to work with —
f = @(x) 2.^x-5*x+2; %Given Function
xaxis = [0:0.5:2]; %x-axis
plot(xaxis,f(xaxis)) %plotting function //DOESN'T WORK —> YEs, IT DOES!
Experiment to get different results.
.

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 2-D and 3-D Plots 的更多信息

标签

产品


版本

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by