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      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 
     10 namespace v8 {
     11 namespace base {
     12 namespace ieee754 {
     13 
     14 // Returns the arc cosine of |x|; that is the value whose cosine is |x|.
     15 V8_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|.
     19 V8_BASE_EXPORT double acosh(double x);
     20 
     21 // Returns the arc sine of |x|; that is the value whose sine is |x|.
     22 V8_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|.
     26 V8_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|.
     30 V8_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.
     34 V8_BASE_EXPORT double atan2(double y, double x);
     35 
     36 // Returns the cosine of |x|, where |x| is given in radians.
     37 V8_BASE_EXPORT double cos(double x);
     38 
     39 // Returns the base-e exponential of |x|.
     40 V8_BASE_EXPORT double exp(double x);
     41 
     42 V8_BASE_EXPORT double atanh(double x);
     43 
     44 // Returns the natural logarithm of |x|.
     45 V8_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.
     49 V8_BASE_EXPORT double log1p(double x);
     50 
     51 // Returns the base 2 logarithm of |x|.
     52 V8_BASE_EXPORT double log2(double x);
     53 
     54 // Returns the base 10 logarithm of |x|.
     55 V8_BASE_EXPORT double log10(double x);
     56 
     57 // Returns the cube root of |x|.
     58 V8_BASE_EXPORT double cbrt(double x);
     59 
     60 // Returns exp(x)-1, the exponential of |x| minus 1.
     61 V8_BASE_EXPORT double expm1(double x);
     62 
     63 // Returns the sine of |x|, where |x| is given in radians.
     64 V8_BASE_EXPORT double sin(double x);
     65 
     66 // Returns the tangent of |x|, where |x| is given in radians.
     67 V8_BASE_EXPORT double tan(double x);
     68 
     69 // Returns the hyperbolic cosine of |x|, where |x| is given radians.
     70 V8_BASE_EXPORT double cosh(double x);
     71 
     72 // Returns the hyperbolic sine of |x|, where |x| is given radians.
     73 V8_BASE_EXPORT double sinh(double x);
     74 
     75 // Returns the hyperbolic tangent of |x|, where |x| is given radians.
     76 V8_BASE_EXPORT double tanh(double x);
     77 
     78 }  // namespace ieee754
     79 }  // namespace base
     80 }  // namespace v8
     81 
     82 #endif  // V8_BASE_IEEE754_H_
     83