Unary minus precedence preference
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07-23-2014, 10:10 PM
Post: #20
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RE: Unary minus precedence preference
This really comes down to precedence and associations. Part of the reason that 0-2^2 "feels like" -4 is that our minds bind the - as a subtraction (which it is, it's not unary!)
The conflict is that unary - , to be truly unary, has to bind as or higher than parentheses; -2^2 has to become (-2)^2. So there is no unary -, it's just a writing convention of deleting the 0. |
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