Stan Math Library
4.9.0
Automatic Differentiation
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The compound add/assignment operator for scalars (C++).
If this variable is a and the argument is the scalar b, then (a += b) behaves exactly the same way as (a = a + b). Note that the result is an assignable lvalue.
b | The scalar to add to this variable. |
Definition at line 19 of file operator_plus_equal.hpp.