| # | Line 184 | Line 184 | namespace oopse { | |
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| 184 | { | |
| 185 | // Return a real number from a normal (Gaussian) distribution with given | |
| 186 | // mean and variance by Box-Muller method | |
| 187 | < | double r = sqrt( -2.0 * log( 1.0-randDblExc()) ) * variance; |
| 187 | > | assert(variance > 0); |
| 188 | > | double r = sqrt( -2.0 * log( 1.0-randDblExc()) * variance); |
| 189 | double phi = 2.0 * 3.14159265358979323846264338328 * randExc(); | |
| 190 | return mean + r * cos(phi); | |
| 191 | } | |
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