Unary minus

Unary minus makes a single value negative, such as in the number —3. 

Operations of equal precedence are done left to right except for exponentiation and unary minus, which are done right to left. 

Exponentiation (root) or unary minus Exponentiation (root) or unary minus ... 

Note that some operations, like NOT, work on a single number they re called unary. Most need two numbers and are called binary functions. Plus and minus signs can be either unary (in the number —3, the minus sign works on a single number) or binary (the minus sign connects two numbers in the expression 10 — 6). 

Exponentiation or unary minus Multiplication or division Addition or subtraction Lowest... 

Operations of equal precedence are done from left to right except for exponentiation and unary minus, which are done from right to left. (Unary minus is a minus sign that denotes a negative number rather than a subtraction.)... 

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