Define/Undefine Constants

Define and undefine constant variables with no use of global

Description

these two functions define and undefine variable constants like the #define
preprocessor command in C.
No global variables are used.
Tested on R2006b
See help for each file

• MATLAB release: MATLAB 7.3 (R2006b)

[John D'Errico]

An interesting idea. Nicely implemented.

I did get a chuckle over the example used - defining pi as 3. Some boards of education might even agree. 8-)

[m m]

Thanks!
I seems to work good on Matlab 7.5, if you don't need to redefine during the execution.
(...on Matlab 7.5, I have troubles redefining constants, the value is not updated, even with 'undefine/define'...)

[can baran]

this .m file has a subtle bug that i didn't bother to fix. As the previous person commented it has troubles redefining (overwriting) the constants
The idea is a good one! It did save me the trouble of declaring global variables and invoking the global variables in subfunction where i need the global variables, but as it sometimes fails (and i dont know when exactly) to overwrite the constants, i stopped using this define.