73 lines
2.2 KiB
Diff
73 lines
2.2 KiB
Diff
From 450435a84a40acc1871cd84f1caf2ea47c11a18c Mon Sep 17 00:00:00 2001
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From: fredrik <fredrik.johansson@gmail.com>
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Date: Tue, 28 Sep 2021 12:07:45 +0200
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Subject: [PATCH] fix (hopefully) spurious test failures for gamma_fmpq
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---
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arb_hypgeom/gamma_fmpq.c | 16 ++++++++--------
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1 file changed, 8 insertions(+), 8 deletions(-)
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diff --git a/arb_hypgeom/gamma_fmpq.c b/arb_hypgeom/gamma_fmpq.c
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index 996a87e5..ee750d0d 100644
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--- a/arb_hypgeom/gamma_fmpq.c
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+++ b/arb_hypgeom/gamma_fmpq.c
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@@ -529,22 +529,22 @@ arb_hypgeom_gamma_fmpq_outward(arb_t y, const fmpq_t x, slong prec)
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if (q == 1 || q == 2 || q == 3 || q == 4 || q == 6)
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{
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- arb_hypgeom_gamma_small_frac(t, p, q, prec);
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+ arb_hypgeom_gamma_small_frac(t, p, q, prec + 4 * (m != 0));
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}
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else
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{
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- arb_hypgeom_gamma_fmpq_hyp(t, a, prec);
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+ arb_hypgeom_gamma_fmpq_hyp(t, a, prec + 4 * (m != 0));
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}
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/* argument reduction */
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if (m >= 0)
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{
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- arb_rising_fmpq_ui(u, a, m, prec);
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+ arb_rising_fmpq_ui(u, a, m, prec + 4);
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arb_mul(y, t, u, prec);
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}
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else
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{
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- arb_rising_fmpq_ui(u, x, -m, prec);
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+ arb_rising_fmpq_ui(u, x, -m, prec + 4);
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arb_div(y, t, u, prec);
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}
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@@ -602,7 +602,7 @@ arb_hypgeom_gamma_fmpq_taylor(arb_t y, const fmpq_t x, slong prec)
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}
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arb_set_fmpq(t, a, prec + 4);
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- success = arb_hypgeom_gamma_taylor(t, t, 0, prec);
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+ success = arb_hypgeom_gamma_taylor(t, t, 0, prec + 4);
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if (success)
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{
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@@ -611,12 +611,12 @@ arb_hypgeom_gamma_fmpq_taylor(arb_t y, const fmpq_t x, slong prec)
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if (m >= 0)
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{
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- arb_rising_fmpq_ui(u, a, m, prec);
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+ arb_rising_fmpq_ui(u, a, m, prec + 4);
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arb_mul(y, t, u, prec);
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}
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else
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{
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- arb_rising_fmpq_ui(u, x, -m, prec);
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+ arb_rising_fmpq_ui(u, x, -m, prec + 4);
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arb_div(y, t, u, prec);
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}
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@@ -684,7 +684,7 @@ arb_hypgeom_gamma_fmpq(arb_t y, const fmpq_t x, slong prec)
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wp = (slong) fmpz_bits(fmpq_numref(x)) - (slong) fmpz_bits(fmpq_denref(x));
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wp = FLINT_MAX(wp, 0);
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wp = FLINT_MIN(wp, 4 * prec);
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- wp += prec;
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+ wp += prec + 4;
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arb_set_fmpq(y, x, wp);
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