Method E

library/cpp/expression/expression_variable.cpp:147–149

    return !IsZeroDoubleValue() ? secondOperand.ToDouble() : u.ToDouble();
}
double TExpressionVariable::E(const TExpressionVariable& secondOperand) const {
    return IsEqual(secondOperand, EPS) ? 1.0 : 0.0;
}
double TExpressionVariable::Ne(const TExpressionVariable& secondOperand) const {
    return IsEqual(secondOperand, EPS) ? 0.0 : 1.0;
}