[scilab-Users] predefined functions in Scilab

[Manjusha Joshi]

Hello


>
> For your problem you should have a look at the funcprot function.
>
> However, the default mode is to issue a warning when redefining predefined
> functions.
>
Thanks for reply.

I tried following
 A  =

    2.    3.    4.    78.


-->funcprot(2)


-->sum(A)
 ans  =

    87.

-->sum=98
      !--error 223
It is not possible to redefine the sum primitive this way (see clearfun).


-->deff('y=f(x)','y=x*x')

-->deff('y=f(x)','y=2*x*x')
                         !--error 111
Trying to re-define function f.


User defined function should be redefined. At the same time scilab
predefined functions should not.
I tried following:

-->clearfun f
 ans  =

  F

-->clearfun sum
 ans  =

  T
Now it is allowing to redefine sum which should be protected. On the other
hand it is not allowing to redefine the function f. Which one needs to
redefine several times in one session.


What is going wrong? Am I missing something.
Regards

>
>
> On 09/22/2011 12:51 PM, Manjusha Joshi wrote:
>
>> Hello,
>>
>> sum, prod etc. are predefined functions in scilab.
>>
>> if some one with out knowing the name of the  predefind function use  it
>> as avariable name, as follows:
>>
>>
>> -->A=[2,3,4,78]
>>  A  =
>>
>>    2.    3.    4.    78.
>>
>> -->sum(A)
>>  ans  =
>>
>>    87.
>>
>> -->sum=96
>>  sum  =
>>
>>    96.
>>
>> -->sum(A)
>>       !--error 21
>> Invalid index.
>>
>>
>>
>>  scilab not even complains. In old versions at least there was some error
>> message.
>>
>> This happens in the current session only.
>> Is there any way to protect the predefined functions and their names?
>> I think we should declare these function names as predefined functions.
>>
>>
>> --
>> Manjusha S. Joshi
>>
>> blog:http://manjushajoshi.**wordpress.com/<http://manjushajoshi.wordpress.com/>
>>
>>
>>
>>
>


-- 
Manjusha S. Joshi
Mobile:  09822 319328
blog:http://manjushajoshi.wordpress.com/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.scilab.org/pipermail/users/attachments/20110923/e0972741/attachment.htm>