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/illumos-gate/usr/src/lib/libm/common/C/
H A Dlog1p.c60 * Note that 2s = f - s*f = f - hfsq + s*hfsq, where hfsq = f*f/2.
63 * log1p(f) = f - (hfsq - s*(hfsq+R)).
66 * = k*ln2_hi+(f-(hfsq-(s*(hfsq+R)+k*ln2_lo)))
126 double hfsq, f, c = 0.0, s, z, R, u; local
182 hfsq = 0.5 * f * f;
191 R = hfsq * (1.
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