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iOS Swift Basics (retired) Operators Operator Precedence

why the binary operations have to be organised ?

i mean why the programming language does not calculate the binary operations as what we write ? why it has to start with multiplication and end with addition or subtraction ?

1 Answer

Martin Wildfeuer
Martin Wildfeuer
Courses Plus Student 11,071 Points

Operator precedence or Order of Operations is a common mathematical concept that applies internationally. Swift and almost all other programming languages adhere to it. You can read more about it here.

1 + 2 * 3 = ?

If you hand someone a note with this task, she or he will come to the result 7, as they learned in school "multiplication and division first, then addition and subtraction".

So, in a nutshell, Swift just follows rules that have always applied. Everything else would be much more confusing, so we better stick to this standard.

yes , thank you :)