acb_theta_ctx_tau_dupl, acb_theta_ctx_z_dupl
Synopsis
#include <flint/acb_theta.h>void acb_theta_ctx_tau_dupl(acb_theta_ctx_tau_t ctx, slong prec)sourcevoid acb_theta_ctx_z_dupl(acb_theta_ctx_z_t ctx, slong prec)sourceReplace the context data for \tau by those for 2\tau, respectively those for (z, \tau) by those for (2z, 2\tau), by squaring, which is much cheaper than recomputing them.
Cite this page
The FLINT team, “acb_theta_ctx_tau_dupl, acb_theta_ctx_z_dupl (acb_theta.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/acb_theta/acb_theta_ctx_tau_dupl.html (generated 2026-10-20).
@misc{flint-doc-acb-theta-acb-theta-ctx-tau-dupl,
author = {{The FLINT team}},
title = {{acb\_theta\_ctx\_tau\_dupl, acb\_theta\_ctx\_z\_dupl (acb\_theta.h)}},
howpublished = {FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev},
year = {2026},
url = {https://flintlib.org/doc/acb_theta/acb_theta_ctx_tau_dupl.html},
note = {Generated 2026-10-20}
}