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CS110_02b_mathOps

# Computed sooner left to right associativity except

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Unformatted text preview: -to right associativity (except unary minus) (compute left-to-right for operators of same precedence) Find a complete chart on the book's inside cover... 10 Precedence and Associativity (arithmetic operators) Examples: X =17 - 2 * 8 ? Y = 17 - 2 - 8? Ans: X=17-(2*8) , X=1 Ans: Y = (17-2)-8, Y=7 Z = 10 + 9 * ((8 + 7) % 6) + 5 * 4 % 3 *2 + 1 ? Not sure? Confused? then use parentheses in your code! (write code for forgetful humans, not perfect machines) 11 Two Very Strange Operators: pre-fix, post-fix notation Increment, decrement operators: ++ , - Instead of statement you can use either Instead of statement you can use either num = 10; ans1 = ++num; First, incr. num to 11, then assign num to ans1. num = num + 1; num++; or ++num; num = num - 1; num--; or --num; Do you see how C++ got its name? **BUT BE VERY CAREFUL!** (see...
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