Lines Matching full:2
41 * log(1+x) = x - 0.5 x^2 + x^3 P(x)/Q(x).
43 * Otherwise, setting z = 2(x-1)/x+1),
64 /* Coefficients for ln(1+x) = x - x**2/2 + x**3 P(x)/Q(x)
65 * 1/sqrt(2) <= x < sqrt(2)
102 /* Coefficients for log(x) = z + z^3 P(z^2)/Q(z^2),
103 * where z = 2(x-1)/(x+1)
104 * 1/sqrt(2) <= x < sqrt(2)
129 /* log10(2) */
131 L102B = -1.14700043360188047862611052755069732318101185E-2L,
134 L10EB = -6.570551809674817234887108108339491770560299E-2L,
135 /* sqrt(2)/2 */
203 * where z = 2(x-1)/x+1) in log10l()
205 if ((e > 2) || (e < -2)) in log10l()
208 { /* 2( 2x-1 )/( 2x+1 ) */ in log10l()
214 { /* 2 (x-1)/(x+1) */ in log10l()
226 /* logarithm using log(1+x) = x - .5x**2 + x**3 P(x)/Q(x) */ in log10l()
231 x = 2.0L * x - 1.0L; /* 2x - 1 */ in log10l()
244 * and base 2 exponent by log10(2). in log10l()