how to define a function

4 次查看（过去 30 天）
Charles Kinoshita
Charles Kinoshita 2017-7-20
编辑： Walter Roberson 2017-7-21
why do I have error message when I type
function dy = ff(t,y)
  2 个评论
Charles Kinoshita
Charles Kinoshita 2017-7-21
编辑：Stephen23 2017-7-21
but shouldn't I be able to type
>> clear
>> function yprime = bvexample(t,y)
function yprime = bvexample(t,y)
↑
Error: Function definitions are not permitted in this context.
Steven Lord
Steven Lord 2017-7-21
No. You cannot define functions by typing the text of their body at the Command Prompt. You need to write them as a function file. [If your function can be written as one statement, you could create an anonymous function handle.]

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

James Tursa
James Tursa 2017-7-20
编辑：James Tursa 2017-7-20
If you are getting this message:
Error: Function definitions are not permitted in this context.
It means that you cannot define a function in that part of the code. E.g., you cannot define functions at the end of script files in older versions of MATLAB. So either turn your script file into a function file itself, or copy your function code to a new file (with the name ff.m).
But this is all just a guess, since you haven't told us what the error message is or shown us any code.

类别

在 Help Center 和 File Exchange 中查找有关 Robotics 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by