Xi Chen created MATH-1496: ----------------------------- Summary: An error in Gamma.java Key: MATH-1496 URL: https://issues.apache.org/jira/browse/MATH-1496 Project: Commons Math Issue Type: Bug Affects Versions: 3.6.1 Reporter: Xi Chen
457 if (x >= C_LIMIT) { 458 // use method 4 (accurate to O(1/x^8) 459 double inv = 1 / (x * x); 460 // 1 1 1 1 461 // log(x) - ----- - ---------- + ------------ - ------------ 462 // 2 x 12 x^2 120 x^4 252 x^6 463 return FastMath.log(x) - 0.5 / x - inv * ((1.0 / 12) + inv * (1.0 / 120 - inv / 252)); 464 } Line 463: return FastMath.log(x) - 0.5 / x - inv * ((1.0 / 12) + inv * (1.0 / 120 - inv / 252)); Is it should be: return FastMath.log(x) - 0.5 / x - inv * ((1.0 / 12) - inv * (1.0 / 120 - inv / 252)); -- This message was sent by Atlassian Jira (v8.3.2#803003)