projektAI/venv/Lib/site-packages/scipy/special/_precompute/zetac.py
2021-06-06 22:13:05 +02:00

28 lines
615 B
Python

"""Compute the Taylor series for zeta(x) - 1 around x = 0."""
try:
import mpmath # type: ignore[import]
except ImportError:
pass
def zetac_series(N):
coeffs = []
with mpmath.workdps(100):
coeffs.append(-1.5)
for n in range(1, N):
coeff = mpmath.diff(mpmath.zeta, 0, n)/mpmath.factorial(n)
coeffs.append(coeff)
return coeffs
def main():
print(__doc__)
coeffs = zetac_series(10)
coeffs = [mpmath.nstr(x, 20, min_fixed=0, max_fixed=0)
for x in coeffs]
print("\n".join(coeffs[::-1]))
if __name__ == '__main__':
main()