"will be summed" is a valid and usable phrase in written English.
You can use it when you want to describe the process of adding two or more numbers together. For example, "The total amount owed will be summed and then divided equally among the four of us."
The FACT-L contains four subscales for physical (7-items), functional (7-items), emotional (6-items), social/family (7-items) well-being plus a lung cancer specific subscale (15-items) which will be summed to obtain the FACT-L score (all 42 items).
The flux values calculated by eff2evt within this circle will be summed.
When background spectra are extracted and combine=yes, the background spectra will be summed, even if bkgresp=no.
Like Tony Blair, on whom he often seemed to model himself, his legacy will be summed up in one word.
The results obtained from the performance criteria will be summed up into a so-called 'Water Resources Sustainability Index' to facilitate comparison among the likely trade-offs.
When supplied with a background ID, the amplitudes of the unconvolved background model associated with the specified background data set will be summed over the entire data range.
When supplied with a background ID, the total observed background counts in the entire data range of the specified background data set will be summed.
If calc_source_sum is called with no arguments, the unconvolved model amplitudes will be summed over the entire data range of the default data set.
If calc_model_sum is called with no arguments, the convolved model counts will be summed over the entire data range of the default data set.
When supplied with a background ID, the convolved background model associated with the specified background data set will be summed over the entire data range.
If calc_data_sum is called with no arguments, the observed counts will be summed over the entire data range of the default data set.
