Hi,

I would like to sum only parts of the values of an array sum(array, istart) -> result = array[istart] + array[isart+1] .. + array[sweep_size(array)].

I appreciate any idea. Thank's Wolfram

>:(

I would like to sum only parts of the values of an array sum(array, istart) -> result = array[istart] + array[isart+1] .. + array[sweep_size(array)].

I appreciate any idea. Thank's Wolfram

>:(

This might be what you want: