Searched refs:tanh (Results 1 - 7 of 7) sorted by relevance
/openjdk7/jdk/src/share/native/java/lang/fdlibm/src/ |
H A D | s_tanh.c | 33 * 0. tanh(x) is defined to be ----------- 36 * 1. reduce x to non-negative by tanh(-x) = -tanh(x). 37 * 2. 0 <= x <= 2**-55 : tanh(x) := x*(one+x) 39 * 2**-55 < x <= 1 : tanh(x) := -----; t = expm1(-2x) 42 * 1 <= x <= 22.0 : tanh(x) := 1- ----- ; t=expm1(2x) 44 * 22.0 < x <= INF : tanh(x) := 1. 47 * tanh(NaN) is NaN; 48 * only tanh(0)=0 is exact for finite argument. 60 double tanh(doubl function [all...] |
/openjdk7/jdk/test/java/lang/Math/ |
H A D | HyperbolicTests.java | 27 * @summary Tests for {Math, StrictMath}.{sinh, cosh, tanh} 757 * Test accuracy of {Math, StrictMath}.tanh. The specified 760 * The defintion of tanh(x) is 764 * The series expansion of tanh(x) = 770 * 1. For large values of x tanh(x) ~= signum(x) 772 * 2. For small values of x, tanh(x) ~= x. 774 * Additionally, tanh is an odd function; tanh(-x) = -tanh(x). 788 // x tanh( [all...] |
/openjdk7/jdk/src/share/native/java/lang/fdlibm/include/ |
H A D | jfdlibm.h | 58 #define tanh jtanh macro
|
H A D | fdlibm.h | 127 extern double tanh __P((double));
|
/openjdk7/jdk/src/share/classes/java/lang/ |
H A D | Math.java | 1101 * that the absolute value of the exact tanh is always less than 1121 * The result of {@code tanh} for any finite input must have 1123 * exact result of tanh is within 1/2 of an ulp of the limit value 1131 public static double tanh(double x) { method in class:Math 1132 return StrictMath.tanh(x);
|
H A D | StrictMath.java | 57 * {@code sinh}, {@code cosh}, {@code tanh}, 1085 * that the absolute value of the exact tanh is always less than 1108 public static native double tanh(double x); method in class:StrictMath
|
/openjdk7/jdk/test/java/lang/StrictMath/ |
H A D | HyperbolicTests.java | 27 * @summary Tests for StrictMath.{sinh, cosh, tanh} 34 * sinh, cos, and tanh, including the FDLIBM-based ones required by 57 return Tests.test("StrictMath.tanh(double)", input, 58 StrictMath.tanh(input), expected);
|
Completed in 42 milliseconds