Sigma - summation

[Upaka]

Hi I am very very new to C++ and I wanna write few formulae which consist of "Sigma - summation" mathematical function.
If someone knows how can I write, please reply.
Thanks

[Dufresne]

You can use loop for this;

Simply;

int i ,sum = 0 ;
..
..
for( i = 0 ; i < n ; i++)
   sum += i ;

[Upaka]

Hi hi Dufresne
Thanks alot.