CppAD: A C++ Algorithmic Differentiation Package  20130918
template<class Base>
bool IdenticalZero ( const AD< Base > &  x) [friend]

Determine if an AD<Base> is equal to zero, and must be equal zero during any tape playback.

Parameters:
xobject that we are checking.
Returns:
returns true if and only if x is equals zero and is identically a parameter IdenticalPar.
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