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diff --git a/pl/math/tools/log1pf.sollya b/pl/math/tools/log1pf.sollya
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+++ b/pl/math/tools/log1pf.sollya
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+// polynomial for approximating log(1+x) in single precision
+//
+// Copyright (c) 2022-2023, Arm Limited.
+// SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception
+
+deg = 10;
+
+a = -0.25;
+b = 0.5;
+
+f = proc(y) {
+  return log(1+y);
+};
+
+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);