| /bionic/libm/src/ |
| s_log1p.c | 17 /* double log1p(double x)
31 * 2. Approximation of log1p(f).
49 * log1p(f) = f - (hfsq - s*(hfsq+R)).
51 * 3. Finally, log1p(x) = k*ln2 + log1p(f).
58 * log1p(x) is NaN with signal if x < -1 (including -INF) ;
59 * log1p(+INF) is +INF; log1p(-1) is -INF with signal;
60 * log1p(NaN) is that NaN with no signal.
73 * algorithm can be used to compute log1p(x) to within a few ULP
100 log1p(double x) function
[all...] |
| e_atanh.c | 24 * atanh(x) = --- * log(1 + -------) = 0.5 * log1p(2 * --------)
28 * atanh(x) = 0.5*log1p(2x+2x*x/(1-x))
59 t = 0.5*log1p(t+t*x/(one-x));
61 t = 0.5*log1p((x+x)/(one-x));
|
| e_acosh.c | 26 * acosh(x) := log1p(t+sqrt(2.0*t+t*t)); where t=x-1.
61 return log1p(t+sqrt(2.0*t+t*t));
|
| s_asinh.c | 25 * := sign(x)*log1p(|x| + x^2/(1 + sqrt(1+x^2)))
54 w =log1p(fabs(x)+t/(one+__ieee754_sqrt(one+t)));
|
| s_log1pf.c | 49 if(x==(float)-1.0) return -two25/zero; /* log1p(-1)=+inf */
50 else return (x-x)/(x-x); /* log1p(x<-1)=NaN */
|
| /prebuilt/ndk/android-ndk-r6/platforms/android-9/arch-x86/usr/lib/ |
| libm.so | |
| /development/ndk/platforms/android-3/arch-arm/symbols/ |
| libm.so.functions.txt | 169 log1p
|
| /development/ndk/platforms/android-9/arch-x86/symbols/ |
| libm.so.functions.txt | 128 log1p
|
| /libcore/luni/src/main/native/ |
| java_lang_Math.cpp | 103 return log1p(a);
125 NATIVE_METHOD(Math, log1p, "!(D)D"),
|
| java_lang_StrictMath.cpp | 137 NATIVE_METHOD(StrictMath, log1p, "!(D)D"),
|
| /bionic/libm/man/ |
| exp.3 | 50 .Nm log1p ,
80 .Fn log1p "double x"
127 .Fn log1p
187 expm1(n\(**log1p(x))/x, will be accurate when x is tiny.
|
| /external/fdlibm/ |
| s_log1p.c | 46 * log1p(f) = f - (hfsq - s*(hfsq+R)).
55 * log1p(x) is NaN with signal if x < -1 (including -INF) ;
56 * log1p(+INF) is +INF; ieee_log1p(-1) is -INF with signal;
57 * log1p(NaN) is that NaN with no signal.
|
| /libcore/luni/src/test/java/libcore/java/lang/ |
| OldAndroidMathTest.java | 305 assertTrue("Should return NaN", Double.isNaN(Math.log1p(Double.NaN)));
306 assertTrue("Should return NaN", Double.isNaN(Math.log1p(-32.0482175)));
308 Double.POSITIVE_INFINITY, Math.log1p(Double.POSITIVE_INFINITY), 0D);
310 .log1p(0.0)));
312 .doubleToLongBits(Math.log1p(+0.0)));
314 .doubleToLongBits(Math.log1p(-0.0)));
317 Math.log1p(-0.254856327), 0D);
319 .log1p(1583.542), 0D);
321 Math.log1p(0.5894227), 0D);
323 .log1p(Double.MAX_VALUE), 0D)
[all...] |
| OldAndroidStrictMathTest.java | 318 .log1p(Double.NaN)));
320 .log1p(-32.0482175)));
323 .log1p(Double.POSITIVE_INFINITY));
325 .doubleToLongBits(StrictMath.log1p(0.0)));
327 .doubleToLongBits(StrictMath.log1p(+0.0)));
329 .doubleToLongBits(StrictMath.log1p(-0.0)));
332 StrictMath.log1p(-0.254856327));
334 StrictMath.log1p(1583.542));
336 StrictMath.log1p(0.5894227));
338 StrictMath.log1p(Double.MAX_VALUE))
[all...] |
| /frameworks/compile/slang/tests/P_math_fp/ |
| math_fp.rs | 118 TEST_FUNC_1(log1p);
|
| /prebuilt/darwin-x86/toolchain/arm-eabi-4.3.1/lib/gcc/arm-eabi/4.3.1/include/ |
| tgmath.h | 149 #define log1p(x) __TGMATH_REAL(x, log1p) macro
|
| /prebuilt/darwin-x86/toolchain/arm-eabi-4.4.0/lib/gcc/arm-eabi/4.4.0/include/ |
| tgmath.h | 146 #define log1p(x) __TGMATH_REAL(x, log1p) macro
|
| /prebuilt/darwin-x86/toolchain/arm-eabi-4.4.3/lib/gcc/arm-eabi/4.4.3/include/ |
| tgmath.h | 146 #define log1p(x) __TGMATH_REAL(x, log1p) macro
|
| /prebuilt/linux-x86/toolchain/arm-eabi-4.3.1/lib/gcc/arm-eabi/4.3.1/include/ |
| tgmath.h | 149 #define log1p(x) __TGMATH_REAL(x, log1p) macro
|
| /prebuilt/linux-x86/toolchain/arm-eabi-4.4.0/lib/gcc/arm-eabi/4.4.0/include/ |
| tgmath.h | 146 #define log1p(x) __TGMATH_REAL(x, log1p) macro
|
| /prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/lib/gcc/arm-eabi/4.4.3/include/ |
| tgmath.h | 146 #define log1p(x) __TGMATH_REAL(x, log1p) macro
|
| /prebuilt/linux-x86/toolchain/i686-linux-glibc2.7-4.4.3/i686-linux/include/c++/4.4.3/tr1_impl/ |
| cmath | 86 #undef log1p
223 using ::log1p;
633 log1p(float __x)
637 log1p(long double __x)
642 log1p(_Tp __x)
645 return log1p(__type(__x));
|
| /prebuilt/ndk/android-ndk-r5/sources/cxx-stl/gnu-libstdc++/include/tr1_impl/ |
| cmath | 86 #undef log1p
223 using ::log1p;
633 log1p(float __x)
637 log1p(long double __x)
642 log1p(_Tp __x)
645 return log1p(__type(__x));
|
| /prebuilt/ndk/android-ndk-r6/sources/cxx-stl/gnu-libstdc++/include/tr1_impl/ |
| cmath | 86 #undef log1p
223 using ::log1p;
633 log1p(float __x)
637 log1p(long double __x)
642 log1p(_Tp __x)
645 return log1p(__type(__x));
|
| /libcore/luni/src/main/java/java/lang/ |
| StrictMath.java | 441 * more accurate to use {@code log1p(d)} than {@code log(1.0+d)} (due to
446 * <li>{@code log1p(+0.0) = +0.0}</li>
447 * <li>{@code log1p(-0.0) = -0.0}</li>
448 * <li>{@code log1p((anything < 1)) = NaN}</li>
449 * <li>{@code log1p(-1.0) = -infinity}</li>
450 * <li>{@code log1p(+infinity) = +infinity}</li>
451 * <li>{@code log1p(-infinity) = NaN}</li>
452 * <li>{@code log1p(NaN) = NaN}</li>
459 public static native double log1p(double d); method in class:StrictMath
[all...] |
