diff --git a/src/base/ieee754.h b/src/base/ieee754.h
new file mode 100644
index 0000000..cf33580
--- /dev/null
+++ b/src/base/ieee754.h
@@ -0,0 +1,57 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_BASE_IEEE754_H_
+#define V8_BASE_IEEE754_H_
+
+namespace v8 {
+namespace base {
+namespace ieee754 {
+
+// Returns the principal value of the arc tangent of |x|; that is the value
+// whose tangent is |x|.
+double atan(double x);
+
+// Returns the principal value of the arc tangent of |y/x|, using the signs of
+// the two arguments to determine the quadrant of the result.
+double atan2(double y, double x);
+
+// Returns the cosine of |x|, where |x| is given in radians.
+double cos(double x);
+
+// Returns the base-e exponential of |x|.
+double exp(double x);
+
+double atanh(double x);
+
+// Returns the natural logarithm of |x|.
+double log(double x);
+
+// Returns a value equivalent to |log(1+x)|, but computed in a way that is
+// accurate even if the value of |x| is near zero.
+double log1p(double x);
+
+// Returns the base 2 logarithm of |x|.
+double log2(double x);
+
+// Returns the base 10 logarithm of |x|.
+double log10(double x);
+
+// Returns the cube root of |x|.
+double cbrt(double x);
+
+// Returns exp(x)-1, the exponential of |x| minus 1.
+double expm1(double x);
+
+// Returns the sine of |x|, where |x| is given in radians.
+double sin(double x);
+
+// Returns the tangent of |x|, where |x| is given in radians.
+double tan(double x);
+
+}  // namespace ieee754
+}  // namespace base
+}  // namespace v8
+
+#endif  // V8_BASE_IEEE754_H_