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

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