operator_unary_plus.hpp File Reference
`#include <stan/math/rev/core/var.hpp>`
`#include <stan/math/prim/scal/fun/is_nan.hpp>`
`#include <stan/math/rev/core/precomp_v_vari.hpp>`
`#include <stan/math/prim/scal/fun/constants.hpp>`

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## Namespaces

| stan
| stan::math
| Matrices and templated mathematical functions.

## Functions

var | stan::math::operator+ (const var &a)
| Unary plus operator for variables (C++). More...

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