OXIESEC PANEL
- Current Dir:
/
/
opt
/
golang
/
1.22.0
/
src
/
math
Server IP: 191.96.63.230
Upload:
Create Dir:
Name
Size
Modified
Perms
📁
..
-
02/02/2024 06:09:55 PM
rwxr-xr-x
📄
abs.go
366 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
acos_s390x.s
3.73 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
acosh.go
1.71 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
acosh_s390x.s
4.32 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
all_test.go
86.77 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
arith_s390x.go
3.73 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
arith_s390x_test.go
10.78 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
asin.go
1.09 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
asin_s390x.s
4.16 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
asinh.go
1.92 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
asinh_s390x.s
5.74 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
atan.go
3.03 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
atan2.go
1.52 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
atan2_s390x.s
6.93 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
atan_s390x.s
3.69 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
atanh.go
1.99 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
atanh_s390x.s
5.06 KB
02/02/2024 06:09:55 PM
rw-r--r--
📁
big
-
02/02/2024 06:09:55 PM
rwxr-xr-x
📁
bits
-
02/02/2024 06:09:55 PM
rwxr-xr-x
📄
bits.go
1.87 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
cbrt.go
2.31 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
cbrt_s390x.s
4.89 KB
02/02/2024 06:09:55 PM
rw-r--r--
📁
cmplx
-
02/02/2024 06:09:55 PM
rwxr-xr-x
📄
const.go
2.76 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
const_test.go
1.29 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
copysign.go
396 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
cosh_s390x.s
5.59 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
dim.go
1.87 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
dim_amd64.s
1.92 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
dim_arm64.s
963 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
dim_asm.go
344 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
dim_noasm.go
410 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
dim_riscv64.s
1.16 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
dim_s390x.s
1.97 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
erf.go
11.51 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
erf_s390x.s
8.5 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
erfc_s390x.s
14.4 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
erfinv.go
3.37 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
example_test.go
3.75 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
exp.go
5.38 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
exp2_asm.go
252 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
exp2_noasm.go
284 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
exp_amd64.go
261 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
exp_amd64.s
4.24 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
exp_arm64.s
5.36 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
exp_asm.go
268 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
exp_noasm.go
302 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
exp_s390x.s
4.65 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
expm1.go
7.91 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
expm1_s390x.s
5.29 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
export_s390x_test.go
732 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
export_test.go
357 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
floor.go
3.29 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
floor_386.s
1.47 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
floor_amd64.s
2 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
floor_arm64.s
573 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
floor_asm.go
431 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
floor_noasm.go
531 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
floor_ppc64x.s
499 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
floor_s390x.s
579 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
floor_wasm.s
459 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
fma.go
4.61 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
frexp.go
929 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
gamma.go
5.53 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
huge_test.go
2.91 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
hypot.go
850 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
hypot_386.s
1.81 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
hypot_amd64.s
1.05 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
hypot_asm.go
264 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
hypot_noasm.go
297 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
j0.go
13.6 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
j1.go
13.3 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
jn.go
7.18 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
ldexp.go
1.05 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
lgamma.go
11.03 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
log.go
3.86 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
log10.go
873 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
log10_s390x.s
4.73 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
log1p.go
6.34 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
log1p_s390x.s
5.15 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
log_amd64.s
3.66 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
log_asm.go
259 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
log_s390x.s
4.31 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
log_stub.go
292 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
logb.go
1021 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
mod.go
903 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
modf.go
913 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
modf_arm64.s
447 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
modf_asm.go
292 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
modf_noasm.go
326 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
modf_ppc64x.s
416 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
nextafter.go
1.21 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
pow.go
3.65 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
pow10.go
1.24 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
pow_s390x.s
16.27 KB
02/02/2024 06:09:55 PM
rw-r--r--
📁
rand
-
02/02/2024 06:09:55 PM
rwxr-xr-x
📄
remainder.go
2.04 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
signbit.go
302 bytes
02/02/2024 06:09:55 PM
rw-r--r--
📄
sin.go
6.35 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
sin_s390x.s
8.57 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
sincos.go
1.76 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
sinh.go
1.69 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
sinh_s390x.s
5.98 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
sqrt.go
4.75 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
stubs.go
2.57 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
stubs_s390x.s
12.38 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
tan.go
3.68 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
tan_s390x.s
2.72 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
tanh.go
2.66 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
tanh_s390x.s
4.57 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
trig_reduce.go
3.34 KB
02/02/2024 06:09:55 PM
rw-r--r--
📄
unsafe.go
1.27 KB
02/02/2024 06:09:55 PM
rw-r--r--
Editing: log.go
Close
// Copyright 2009 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package math /* Floating-point logarithm. */ // The original C code, the long comment, and the constants // below are from FreeBSD's /usr/src/lib/msun/src/e_log.c // and came with this notice. The go code is a simpler // version of the original C. // // ==================================================== // Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. // // Developed at SunPro, a Sun Microsystems, Inc. business. // Permission to use, copy, modify, and distribute this // software is freely granted, provided that this notice // is preserved. // ==================================================== // // __ieee754_log(x) // Return the logarithm of x // // Method : // 1. Argument Reduction: find k and f such that // x = 2**k * (1+f), // where sqrt(2)/2 < 1+f < sqrt(2) . // // 2. Approximation of log(1+f). // Let s = f/(2+f) ; based on log(1+f) = log(1+s) - log(1-s) // = 2s + 2/3 s**3 + 2/5 s**5 + ....., // = 2s + s*R // We use a special Reme algorithm on [0,0.1716] to generate // a polynomial of degree 14 to approximate R. The maximum error // of this polynomial approximation is bounded by 2**-58.45. In // other words, // 2 4 6 8 10 12 14 // R(z) ~ L1*s +L2*s +L3*s +L4*s +L5*s +L6*s +L7*s // (the values of L1 to L7 are listed in the program) and // | 2 14 | -58.45 // | L1*s +...+L7*s - R(z) | <= 2 // | | // Note that 2s = f - s*f = f - hfsq + s*hfsq, where hfsq = f*f/2. // In order to guarantee error in log below 1ulp, we compute log by // log(1+f) = f - s*(f - R) (if f is not too large) // log(1+f) = f - (hfsq - s*(hfsq+R)). (better accuracy) // // 3. Finally, log(x) = k*Ln2 + log(1+f). // = k*Ln2_hi+(f-(hfsq-(s*(hfsq+R)+k*Ln2_lo))) // Here Ln2 is split into two floating point number: // Ln2_hi + Ln2_lo, // where n*Ln2_hi is always exact for |n| < 2000. // // Special cases: // log(x) is NaN with signal if x < 0 (including -INF) ; // log(+INF) is +INF; log(0) is -INF with signal; // log(NaN) is that NaN with no signal. // // Accuracy: // according to an error analysis, the error is always less than // 1 ulp (unit in the last place). // // Constants: // The hexadecimal values are the intended ones for the following // constants. The decimal values may be used, provided that the // compiler will convert from decimal to binary accurately enough // to produce the hexadecimal values shown. // Log returns the natural logarithm of x. // // Special cases are: // // Log(+Inf) = +Inf // Log(0) = -Inf // Log(x < 0) = NaN // Log(NaN) = NaN func Log(x float64) float64 { if haveArchLog { return archLog(x) } return log(x) } func log(x float64) float64 { const ( Ln2Hi = 6.93147180369123816490e-01 /* 3fe62e42 fee00000 */ Ln2Lo = 1.90821492927058770002e-10 /* 3dea39ef 35793c76 */ L1 = 6.666666666666735130e-01 /* 3FE55555 55555593 */ L2 = 3.999999999940941908e-01 /* 3FD99999 9997FA04 */ L3 = 2.857142874366239149e-01 /* 3FD24924 94229359 */ L4 = 2.222219843214978396e-01 /* 3FCC71C5 1D8E78AF */ L5 = 1.818357216161805012e-01 /* 3FC74664 96CB03DE */ L6 = 1.531383769920937332e-01 /* 3FC39A09 D078C69F */ L7 = 1.479819860511658591e-01 /* 3FC2F112 DF3E5244 */ ) // special cases switch { case IsNaN(x) || IsInf(x, 1): return x case x < 0: return NaN() case x == 0: return Inf(-1) } // reduce f1, ki := Frexp(x) if f1 < Sqrt2/2 { f1 *= 2 ki-- } f := f1 - 1 k := float64(ki) // compute s := f / (2 + f) s2 := s * s s4 := s2 * s2 t1 := s2 * (L1 + s4*(L3+s4*(L5+s4*L7))) t2 := s4 * (L2 + s4*(L4+s4*L6)) R := t1 + t2 hfsq := 0.5 * f * f return k*Ln2Hi - ((hfsq - (s*(hfsq+R) + k*Ln2Lo)) - f) }