I'm having a bit of trouble with this question.
I'm unsure where % (mod) sits on the BEDMAS order of operations.
37 % 20 % 3 * 4 = ?
My mental arithmetic answer is 5 but I must be doing something wrong. Where does % mod sit within BEDMAS?
3 Answers
The modulu (%) operator has the same precedence as the division (/) operator, so:
37 % 20 is 17
17 % 3 is 2
2 * 4 is 8
BEDMAS is misleading as it suggests Division before Multiplication. It is more something for primary school.
It should be
- multiplicative operations: * / %
- additive (binary) operations: + -
Brackets, unary (-), bits and logic operations not entirely covered by BEDMAS too.
(((37 % 20) % 3) * 4) = 8
And not Multiplication after Modulo:
((37 % 20) % (3 * 4)) = 5 ***
I just tested this and java outputs the exactly right result. 37 % 20 = 17, 17 % 3 = 2, 2 * 4 = 8. But refer to MathExchange for your BEDMAS question
Related