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/*
Copyright (C) 2011 Fredrik Johansson
This file is part of FLINT.
FLINT is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License (LGPL) as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version. See <https://www.gnu.org/licenses/>.
*/
#include "test_helpers.h"
#include "fmpz_poly.h"
TEST_FUNCTION_START(fmpz_poly_chebyshev_u, state)
{
fmpz_poly_t T, U;
slong n;
fmpz_poly_init(T);
fmpz_poly_init(U);
for (n = 0; n <= 500; n++)
{
fmpz_poly_chebyshev_u(U, n);
fmpz_poly_chebyshev_t(T, n + 1);
fmpz_poly_derivative(T, T);
fmpz_poly_scalar_divexact_ui(T, T, n + 1);
if (!fmpz_poly_equal(T, U))
{
flint_printf("FAIL: n = %wd\n", n);
flint_printf("T: "); fmpz_poly_print_pretty(T, "x"); flint_printf("\n");
flint_printf("U: "); fmpz_poly_print_pretty(U, "x"); flint_printf("\n");
fflush(stdout);
flint_abort();
}
}
fmpz_poly_clear(T);
fmpz_poly_clear(U);
TEST_FUNCTION_END(state);
}