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Decimal Random Number Generator

Generate uniformly distributed random decimal numbers with customizable precision and range

Generator Configuration

How many random numbers to generate

Set to 0 for integers

Quick Presets

Understanding Random Number Generation

Pseudo-Random Numbers

Computer-generated random numbers are actually "pseudo-random" - they follow deterministic algorithms that produce sequences indistinguishable from truly random numbers for most practical purposes.

Uniform Distribution

Our generator produces numbers following a uniform distribution, meaning each value within the specified range has equal probability of being selected.

Statistical Properties

  • •Mean should approach (min + max) / 2
  • •Standard deviation: (max - min) / √12
  • •Duplicates are rare for continuous distributions

Generation Algorithm

Basic Formula:

random_value = min + random() * (max - min)

rounded_value = round(random_value * 10^precision) / 10^precision

Applications

  • •Statistical sampling and simulation
  • •Monte Carlo methods
  • •Game development and testing
  • •Cryptography and security (with proper seeds)

Quality Measures

The chi-squared test helps evaluate how well the generated numbers follow a uniform distribution. Lower values indicate better uniformity.