An average is more sure than an individual result.
By doing all the calculations required, but not actually filing the forms. You really can't estimate your refund without doing the calculations in at least an approximate form.
Doing the calculations the way they were done before electronic computers: by human computers (i.e. people doing hand calculations typically with just paper and pencil, but sometimes aided via mechanical adding machines and/or slide rules).
before electronic computers there were human computers (i.e. humans doing calculations with pencil and paper, if they were lucky a mechanical desk calculator and a book of precalculated mathematical tables).
A spreadsheet.
If you mean doing calculations, then it is a formula.
No. It is for working with numbers and doing calculations.
Yes they do. Spreadsheets are very good at doing What-If calculations. There are lots of functions available, like the IF function, to help. Other facilities can also be used, so spreadsheets are ideal for it. They are used extensively for doing what-if calculations.
Yes you can. You can create queries that do calculations. You can write code for programs to do calculations in a database. Doing calculations is a significant element of what you do with a database, so yes you can do them within a database.
It is impossible to consider all the energy in the universe when doing calculations because the total energy in the universe is unknown and constantly changing due to various factors like expansion and dark energy. It is more practical to focus on known and relevant energy sources for calculations.
Abacus and Calculator and are same to the extent that both are used for doing calculations. One learnt how to use, these can help you to do calculations really fast. - Neeraj Sharma
It is important to have the decimal place in the correct position when doing calculations manually.
You should when doing calculations with it but otherwise, No.