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-rw-r--r--pl/math/tools/expm1f.sollya21
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diff --git a/pl/math/tools/expm1f.sollya b/pl/math/tools/expm1f.sollya
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--- a/pl/math/tools/expm1f.sollya
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-// polynomial for approximating exp(x)-1 in single precision
-//
-// Copyright (c) 2022-2023, Arm Limited.
-// SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception
-
-deg = 5;
-
-a = -log(2)/2;
-b = log(2)/2;
-
-f = proc(y) {
- return exp(y)-1;
-};
-
-poly = fpminimax(f(x), deg, [|single ...|], [a;b]);
-
-display = hexadecimal;
-print("rel error:", accurateinfnorm(1-poly(x)/f(x), [a;b], 30));
-print("in [",a,b,"]");
-print("coeffs:");
-for i from 2 to deg do round(coeff(poly,i), SG, RN);