JPS54124645A - Random number generator - Google Patents

Random number generator

Info

Publication number
JPS54124645A
JPS54124645A JP3268778A JP3268778A JPS54124645A JP S54124645 A JPS54124645 A JP S54124645A JP 3268778 A JP3268778 A JP 3268778A JP 3268778 A JP3268778 A JP 3268778A JP S54124645 A JPS54124645 A JP S54124645A
Authority
JP
Japan
Prior art keywords
random number
probability distribution
number generator
value
linear section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP3268778A
Other languages
Japanese (ja)
Inventor
Ichiro Inoue
Kenji Kawakita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP3268778A priority Critical patent/JPS54124645A/en
Publication of JPS54124645A publication Critical patent/JPS54124645A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/02—Digital function generators
    • G06F1/03—Digital function generators working, at least partly, by table look-up
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2101/00—Indexing scheme relating to the type of digital function generated
    • G06F2101/14—Probability distribution functions

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To supply a low-cost and simple random number generator by calculating previously sectional linear resemblance functions of probability distribution functions and expressing them in a table form and using this table to generate random numbers according to a specific probability distribution. CONSTITUTION:For vlaue q of one random number generated by a uniform random number generator, the linear section including value q is searched in a table by a table function calculating unit to obtain value f(xi) at the start point of corresponding linear section 1, corresponding variable value xi and reverse variable Hi of the inclination of the corresponding linear section, and xi+Hi(q-f(xi) is calculated to obtain value X. Next, in case that probability distribution is given in form f(ki(X-k2)), x/k1+k2 is calculated in a variable converter. By repeating the operation above, random numbers according to specific probability distribution f(ki(x-k2)) are obtained successively.
JP3268778A 1978-03-20 1978-03-20 Random number generator Pending JPS54124645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3268778A JPS54124645A (en) 1978-03-20 1978-03-20 Random number generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3268778A JPS54124645A (en) 1978-03-20 1978-03-20 Random number generator

Publications (1)

Publication Number Publication Date
JPS54124645A true JPS54124645A (en) 1979-09-27

Family

ID=12365774

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3268778A Pending JPS54124645A (en) 1978-03-20 1978-03-20 Random number generator

Country Status (1)

Country Link
JP (1) JPS54124645A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02272807A (en) * 1989-04-13 1990-11-07 Yokogawa Electric Corp Waveform generation device
JPH03249699A (en) * 1990-02-28 1991-11-07 Kawai Musical Instr Mfg Co Ltd Fluctuation generator for electronic musical instrument

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02272807A (en) * 1989-04-13 1990-11-07 Yokogawa Electric Corp Waveform generation device
JPH03249699A (en) * 1990-02-28 1991-11-07 Kawai Musical Instr Mfg Co Ltd Fluctuation generator for electronic musical instrument

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