Problem with the code
信息
此问题已关闭。 请重新打开它进行编辑或回答。
显示 更早的评论
Hey i got this code and trying to make a graph out of it in Matlab but it wont work, do anyone know why it wont accept it?
f = @(x) 51*x - ((x^2 + x + 3/100)/(2*x + 1))^7 - 17*x*exp(-x)
x= 0:0.1:5
plot(x,y(x))
this is what i get
Error: File: Matlab_labb1.m Line: 26 Column: 4
Invalid expression. Check for missing or extra characters.
0 个评论
回答（1 个）
You should check the rest of the file, because this is not the part of your code that will trigger that issue. There are some things that will trigger an error:
- In your call to plot you're using y, but your function is defined as f.
- You are using matrix products, divisions, and powers, but your input is a vector. If you want element-wise operations replace ^ / and * by .^ ./ and .*.
- This one will not trigger an error, but is still worth noting: you didn't put semicolons at the end of your lines to supress the output.
2 个评论
Tobias Pekola
2020-9-9
Rik
2020-9-9
f = @(x) 51*x - ((x^2 + x + 3/100)/(2*x + 1))^7 - 17*x*exp(-x)
% ^ ^ ^ ^ ^ ^ ^
% all these should be replaced with the element-wise version
(17*x is fine, because 17 is a scalar)
此问题已关闭。
2020-9-9
关闭：
2021-8-20
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
