How define a variable like pi in matlab?

15 次查看（过去 30 天）
Changcheng
Changcheng 2013-12-24
编辑： per isakson 2013-12-24
I want to define several variables like pi,maybe we can call them the constant value, and call them in the functions without defining the twice time. I can not use the global variable because there are almost 100 function files in our project and I do not want to declare them in every function files, it's too troublesome.
I've tried to write the variable in the matlabrc.m, but I can only call the variable in the command window and when I call it in the function file, the matlab told me that it's an undefined variable.
So please tell me how to solve this problem, it's really appreciated of you.
I'm looking forward to your answer.

请先登录，再回答此问题。

采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2013-12-24
create a function
function out=cst1
out=0.12453648
then call the function cst1
a=cst1

更多回答（1 个）

per isakson
per isakson 2013-12-24
编辑：per isakson 2013-12-24
Another way:
>> my_constants.pi
ans =
3.1416
where
classdef my_constants
properties ( Constant = true )
pi = 355/113;
etc = 17;
end
end
Pro: all constants in one file
Con: an extra string in the call

类别

在 Help Center 和 File Exchange 中查找有关 C Shared Library Integration 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by