fix: GuassRand use sigma as stddev directly instead of sqrt(sigma)

2026-05-13 15:53:25 +08:00 · 2026-05-13 15:53:25 +08:00 · f41ce0c40f
commit f41ce0c40f
parent 5ee17627e9
1 changed files with 1 additions and 1 deletions
--- a/TestProject/RNG/RandT.h
+++ b/TestProject/RNG/RandT.h
@ -20,7 +20,7 @@ double GuassRand(double mean = 0, double sigma = 0) {
      sqrt(-2 * log(U1)) * cos(2 * M_PI * U2);  // 均值为0，方差为1的正态分布
  double Y;
  if (sigma >= 0) {
-    Y = mean + sqrt(sigma) * Z;
+    Y = mean + sigma * Z;
  } else {
    Y = mean + Z;
  }