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From: Jeff Johnston <jjohnstn@sourceware.org> To: newlib-cvs@sourceware.org Subject: [newlib-cygwin] Fix a typo in the comment. Date: Fri, 16 Dec 2022 17:19:11 +0000 (GMT) [thread overview] Message-ID: <20221216171911.4CB6F382E74C@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=abf672604bd0d8a2ad9f2ec7cae76ad5905c3092 commit abf672604bd0d8a2ad9f2ec7cae76ad5905c3092 Author: Nadav Rotem <nadavrot@users.noreply.github.com> Date: Wed Dec 14 19:53:47 2022 -0800 Fix a typo in the comment. The implementation of expf() explains how approximation in the range [0 - 0.34] is done. The comment describes the "Reme" algorithm for constructing the polynomial. This is a typo and should be the "Remez" algorithm. The remez algorithm (or minimax) is used to calculate the coefficients of polynomials in other implementations of exp(0 and log(). See more: https://en.wikipedia.org/wiki/Remez_algorithm Diff: --- newlib/libm/math/e_exp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/newlib/libm/math/e_exp.c b/newlib/libm/math/e_exp.c index ec26c2099..77652d687 100644 --- a/newlib/libm/math/e_exp.c +++ b/newlib/libm/math/e_exp.c @@ -28,7 +28,7 @@ * the interval [0,0.34658]: * Write * R(r**2) = r*(exp(r)+1)/(exp(r)-1) = 2 + r*r/6 - r**4/360 + ... - * We use a special Reme algorithm on [0,0.34658] to generate + * We use a special Remez algorithm on [0,0.34658] to generate * a polynomial of degree 5 to approximate R. The maximum error * of this polynomial approximation is bounded by 2**-59. In * other words,
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