Last change
on this file since 180 was
66,
checked in by Maciej Komosinski, 14 years ago
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set 'eol-style' to 'native'
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Property svn:eol-style set to
native
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File size:
874 bytes
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1 | #ifndef _RNDUTIL_H_ |
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2 | #define _RNDUTIL_H_ |
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3 | |
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4 | #include "nonstd.h" |
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5 | #include "math.h" |
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6 | |
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7 | /** @file rndutil.h various functions */ |
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8 | |
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9 | /** @param x change seed if x<=0 |
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10 | @return random value [0..x-1] if x>0 */ |
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11 | unsigned short pseudornd(short x); |
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12 | |
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13 | double CustomRnd(double*); |
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14 | // the parameter is a table which describes the random distribution: |
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15 | // e.g. |
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16 | // double x[]={ 3, // 3 intervals |
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17 | // -10,-1, // (each of them has always uniform distribution and equal probability of being selected) |
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18 | // -1, 1, |
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19 | // 1,10, }; |
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20 | |
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21 | class RandomGener |
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22 | { |
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23 | public: |
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24 | RandomGener() {isNextGauss=0;} |
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25 | static double Uni(float pocz, float kon); ///< unform excluding boundaries |
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26 | double GaussStd(); |
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27 | double Gauss(float m,float s); ///< usually will not return further than 5*stdd |
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28 | private: |
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29 | int isNextGauss; |
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30 | double nextGauss; |
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31 | }; |
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32 | |
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33 | extern RandomGener RndGen; |
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34 | |
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35 | #endif |
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