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897 bytes, as of the version from 2026-08-09 09:10 (current). Recorded here, not run.
import yaml
import os
from utils.utils import numbers_to_yaml
from utils.utils import real_interval_to_sage_string
path = 'data/Special_values/Values_of_the_Gamma_function_at_rational_numbers/'
prec10 = 100 #relative precision in base 10
r = 30
b_range = [1..r]
a_range = [-r..r]
RIFprec = RealIntervalField(prec10 * 3.4 * 2)
numbers = {}
for b in b_range:
for a in a_range:
if gcd(a,b) != 1:
continue
if b == 1 and a <= 0:
continue
s = RIFprec(a)/RIFprec(b)
s_str = str(QQ(a/b))
n = gamma(s)
n_str = real_interval_to_sage_string(n,max_digits = prec10).replace('?','')
if b == 1:
numbers[s_str] = {
'equals': 'HREF{Factorial#%s}[%s!]' % (a-1, a-1),
'proof': 'CITE{formula-factorial}',
'number': n_str,
}
else:
numbers[s_str] = n_str
filename = os.path.join(path, 'numbers.yaml')
yaml.dump(numbers, stream = open(filename, 'w'), sort_keys = False)