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CppAD-> Install Introduction AD ADFun library preprocessor Example Appendix

AD-> Default ad_copy Convert ADValued BoolValued VecAD base_require

ADValued-> Arithmetic std_math_ad MathOther CondExp Discrete

Arithmetic-> UnaryPlus UnaryMinus ad_binary compute_assign

UnaryMinus-> UnaryMinus.cpp

Headings-> Syntax Purpose Base x y Operation Sequence Derivative Example

AD Unary Minus Operator
Syntax
y = - x

Purpose
Computes the negative of x.

Base
The operation in the syntax above must be supported for the case where the operand is a const Base object.

x
The operand x has one of the following prototypes
     const AD<Base>               &x
     const VecAD<Base>::reference &x

y
The result y has type
     AD<Base> y
It is equal to the negative of the operand x.

Operation Sequence
This is an AD of Base atomic operation and hence is part of the current AD of Base operation sequence .

Derivative
If  f is a Base function ,  \[
     \D{[ - f(x) ]}{x} = - \D{f(x)}{x}
\] 

Example
The file UnaryMinus.cpp contains an example and test of this operation.

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Input File: cppad/local/unary_minus.hpp