1// Copyright 2016 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef V8_BASE_IEEE754_H_
6#define V8_BASE_IEEE754_H_
7
8#include "src/base/base-export.h"
9
10namespace v8 {
11namespace base {
12namespace ieee754 {
13
14// Returns the arc cosine of |x|; that is the value whose cosine is |x|.
15V8_BASE_EXPORT double acos(double x);
16
17// Returns the inverse hyperbolic cosine of |x|; that is the value whose
18// hyperbolic cosine is |x|.
19V8_BASE_EXPORT double acosh(double x);
20
21// Returns the arc sine of |x|; that is the value whose sine is |x|.
22V8_BASE_EXPORT double asin(double x);
23
24// Returns the inverse hyperbolic sine of |x|; that is the value whose
25// hyperbolic sine is |x|.
26V8_BASE_EXPORT double asinh(double x);
27
28// Returns the principal value of the arc tangent of |x|; that is the value
29// whose tangent is |x|.
30V8_BASE_EXPORT double atan(double x);
31
32// Returns the principal value of the arc tangent of |y/x|, using the signs of
33// the two arguments to determine the quadrant of the result.
34V8_BASE_EXPORT double atan2(double y, double x);
35
36// Returns the cosine of |x|, where |x| is given in radians.
37V8_BASE_EXPORT double cos(double x);
38
39// Returns the base-e exponential of |x|.
40V8_BASE_EXPORT double exp(double x);
41
42V8_BASE_EXPORT double atanh(double x);
43
44// Returns the natural logarithm of |x|.
45V8_BASE_EXPORT double log(double x);
46
47// Returns a value equivalent to |log(1+x)|, but computed in a way that is
48// accurate even if the value of |x| is near zero.
49V8_BASE_EXPORT double log1p(double x);
50
51// Returns the base 2 logarithm of |x|.
52V8_BASE_EXPORT double log2(double x);
53
54// Returns the base 10 logarithm of |x|.
55V8_BASE_EXPORT double log10(double x);
56
57// Returns the cube root of |x|.
58V8_BASE_EXPORT double cbrt(double x);
59
60// Returns exp(x)-1, the exponential of |x| minus 1.
61V8_BASE_EXPORT double expm1(double x);
62
63// Returns |x| to the power of |y|.
64// The result of base ** exponent when base is 1 or -1 and exponent is
65// +Infinity or -Infinity differs from IEEE 754-2008. The first edition
66// of ECMAScript specified a result of NaN for this operation, whereas
67// later versions of IEEE 754-2008 specified 1. The historical ECMAScript
68// behaviour is preserved for compatibility reasons.
69V8_BASE_EXPORT double pow(double x, double y);
70
71// Returns the sine of |x|, where |x| is given in radians.
72V8_BASE_EXPORT double sin(double x);
73
74// Returns the tangent of |x|, where |x| is given in radians.
75V8_BASE_EXPORT double tan(double x);
76
77// Returns the hyperbolic cosine of |x|, where |x| is given radians.
78V8_BASE_EXPORT double cosh(double x);
79
80// Returns the hyperbolic sine of |x|, where |x| is given radians.
81V8_BASE_EXPORT double sinh(double x);
82
83// Returns the hyperbolic tangent of |x|, where |x| is given radians.
84V8_BASE_EXPORT double tanh(double x);
85
86} // namespace ieee754
87} // namespace base
88} // namespace v8
89
90#endif // V8_BASE_IEEE754_H_
91