Unary additive operators
The unary additive operators are used to perform arithmetic on one right operand of type decimal, float or integer. The result type of the unary arithmetic operators is the same as the type of the operand.
Both of the unary arithmetic operators have one operand, which must be an expression of type decimal , float or integer. The result type is the same as the type of the operand.
Unary inverse
The unary additive inverse operator produces a result that is its right operand value with the sign reversed. If the operand value is negative, the result value is positive. If the operand value is positive, the result value is negative. If the operand value is zero, the result value is zero.
Unary identity
The unary additive identity operator + produces a result that is its right operand value.