While it is trivial to simply remove the fractional part of an irrational or rational number, and in programming I could just use the
ceil() functions, I was wondering how such calculation is done using basic arithmetic.
In other words, how can I get the integer part of a (base-10) number using merely addition, subtraction, multiplication and division?
Perhaps this is trivial, but after a bit of trying and a bit of googling, I couldn't quite get my head around it. Maybe it is not so trivial after all?