# CouenneExprBDiv.hpp File Reference

`#include "CouenneExprOp.hpp"`

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## Classes
class | Couenne::exprLBDiv
| class to compute lower bound of a fraction based on the bounds of both numerator and denominator More...
class | Couenne::exprUBDiv
| class to compute upper bound of a fraction based on the bounds of both numerator and denominator More...
## Namespaces
namespace | Couenne

| general include file for different compilers
## Functions
static CouNumber | Couenne::safeDiv (register CouNumber a, register CouNumber b, int sign)
| division that avoids NaN's and considers a sign when returning infinity

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