Warp wrote:

> Adrien Rebollo <adr### [at] gmxfr> wrote:
>> #declare my_function = function {
>>         sum (I, 0, Imax, my_array[I](x,y,z))
>> }
> 
>> gives me
>> Parse Error: Expected 'numeric expression', undeclared identifier 'I'
>> found instead
> 
>   Well, it's exactly what the error message says: I has not been defined
> anywhere, so POV-Ray can't know what do you mean by it.
>   You have to #declare its value.
> 

Then why does this work ?
#declare my_function = function {
        sum (I, 0, Imax, 2*I)
}

I have not #declared I either.

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