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- /* Compare the integral of f(x) with the integral of |f(x)|
- to determine if f(x) covers both positive and negative values */
- static inline int
- test_positivity (double result, double resabs);
- static inline int
- test_positivity (double result, double resabs)
- {
- int status = (fabs (result) >= (1 - 50 * GSL_DBL_EPSILON) * resabs);
- return status;
- }
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