|  | 
| UHD_INLINE bool | frequencies_are_equal (double lhs, double rhs) | 
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| double | dB_to_lin (const double dB_val) | 
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| double | lin_to_dB (const double val) | 
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| template<typename IntegerType> | 
| IntegerType | lcm (IntegerType x, IntegerType y) | 
|  | Portable version of lcm() across Boost versions. 
 | 
|  | 
| template<typename IntegerType> | 
| IntegerType | gcd (IntegerType x, IntegerType y) | 
|  | Portable version of gcd() across Boost versions. 
 | 
|  | 
| template<typename T> | 
| constexpr int | sign (T x) | 
|  | Returns the sign of x. 
 | 
|  | 
| double | wrap_frequency (const double requested_freq, const double rate) | 
|  | Return a wrapped frequency that is the equivalent frequency in the first. 
 | 
|  | 
Contains useful mathematical functions, classes, and constants, which should be used in UHD when portable / std options are not available.