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17 #ifndef INC_ESYS_MATHS
18 #define INC_ESYS_MATHS
30 #if defined(_WIN32) && defined(__INTEL_COMPILER)
44 #define IS_NAN(__VAL__) (isnan(__VAL__))
46 #define IS_NAN(__VAL__) (_isnan(__VAL__))
49 #define IS_NAN(__VAL__) (0)
53 #define EPSILON DBL_EPSILON
54 #define LARGE_POSITIVE_FLOAT DBL_MAX
55 #define SMALL_NEGATIVE_FLOAT -DBL_MAX