generator get max min name random_generator random_generator set uniform uniform_int uniform_positive ~random_generator

double random_generator::uniform (  ) Function that returns uniform random variable in range [0, 1) From GSL manual : This function returns a double precision floating point number uniformly distributed in the range [0,1). The range includes 0.0 but excludes 1.0. The value is typically obtained by dividing the result of gsl_rng_get(r) by gsl_rng_max(r) + 1.0 in double precision. Some generators compute this ratio internally so that they can provide floating point numbers with more than 32 bits of randomness (the maximum number of bits that can be portably represented in a single unsigned long int).