diff options
| author | Jens-Heiner Rechtien <hr@openoffice.org> | 2009-01-06 13:57:48 +0000 |
|---|---|---|
| committer | Jens-Heiner Rechtien <hr@openoffice.org> | 2009-01-06 13:57:48 +0000 |
| commit | 0421beabd33d135e1ab5f4a5a57eea836a93549b (patch) | |
| tree | d057931054b8e8d7fea31e64c8149a9efd832c1a /sal/inc | |
| parent | d8c0728fffbe6526babf35d9b8425d296f53394e (diff) | |
CWS-TOOLING: integrate CWS odff05
2008-12-11 04:17:37 +0100 er r265237 : #i94555# AppendIntToken for GAMMADIST, Excel needs 4 parameters; also use AppendIntToken instead of AppendNumToken for POISSON
2008-12-11 04:04:27 +0100 er r265236 : #i96837# make cumulative parameter of POISSON optional; patch from <lvyue> with slight modifications
2008-12-11 03:35:03 +0100 er r265235 : #i96835# make base parameter of LOG() optional also in UI; patch from <lvyue>
2008-12-11 03:15:30 +0100 er r265234 : #i94555# patch from <regina>, ODFF:
Add GAMMA, CHISQDIST, CHISQINV.
Make the 'cumulative' parameter of GAMMADIST optional.
Adapt the domain of CHIDIST to allow negative x.
Remove the constraint "degrees of freedom < 1.0E5" from CHIDIST and CHIINV.
Plus a mechanism to write the now optional parameter of GAMMADIST to PODF and
ODFF if omitted, for backwards compatibility.
2008-12-10 18:14:16 +0100 er r265214 : DBG_... need semicolon
2008-12-05 00:49:55 +0100 er r264881 : WaE unxlngi6: declaration of 'pFuncInfo' shadows a previous local
2008-12-05 00:26:05 +0100 er r264879 : #i91547# BETADIST with optional density/cumulative parameter and much better precision; patch from <regina>
2008-12-04 22:51:40 +0100 er r264877 : #i91602# add expm1() and log1p() replacements; based on a patch from <regina>
2008-12-01 16:07:35 +0100 dr r264614 : #i93789# import of EUROCONVERT from XLSX/XLSB
2008-11-28 13:15:01 +0100 dr r264543 : #i93789# new sheet function EUROCONVERT + XLS import/export, patch contributed by lvyue
2008-11-26 14:54:23 +0100 er r264397 : CWS-TOOLING: rebase CWS odff05 to trunk@264325 (milestone: DEV300:m36)
2008-11-20 14:23:33 +0100 er r264053 : CWS-TOOLING: rebase CWS odff05 to trunk@263288 (milestone: DEV300:m35)
2008-11-19 18:07:43 +0100 er r264012 : merged from trunk
2008-11-19 17:51:36 +0100 er r264011 : migrate CWS odff05 to SVN
Diffstat (limited to 'sal/inc')
| -rw-r--r-- | sal/inc/rtl/math.h | 18 | ||||
| -rw-r--r-- | sal/inc/rtl/math.hxx | 14 |
2 files changed, 32 insertions, 0 deletions
diff --git a/sal/inc/rtl/math.h b/sal/inc/rtl/math.h index 96e2a02045b5..12cf825da464 100644 --- a/sal/inc/rtl/math.h +++ b/sal/inc/rtl/math.h @@ -406,6 +406,24 @@ double SAL_CALL rtl_math_pow10Exp(double fValue, int nExp) SAL_THROW_EXTERN_C(); */ double SAL_CALL rtl_math_approxValue(double fValue) SAL_THROW_EXTERN_C(); +/** Returns more accurate e^x-1 for x near 0 than calculating directly. + + expm1 is part of the C99 standard, but not provided by some compilers. + + @param fValue + The value x in the term e^x-1. + */ +double SAL_CALL rtl_math_expm1(double fValue) SAL_THROW_EXTERN_C(); + +/** Returns more accurate log(1+x) for x near 0 than calculating directly. + + log1p is part of the C99 standard, but not provided by some compilers. + + @param fValue + The value x in the term log(1+x). + */ +double SAL_CALL rtl_math_log1p(double fValue) SAL_THROW_EXTERN_C(); + #if defined __cplusplus } #endif /* __cplusplus */ diff --git a/sal/inc/rtl/math.hxx b/sal/inc/rtl/math.hxx index 5161294ad8b5..7dd7282449f6 100644 --- a/sal/inc/rtl/math.hxx +++ b/sal/inc/rtl/math.hxx @@ -200,6 +200,20 @@ inline double approxValue(double fValue) return rtl_math_approxValue(fValue); } +/** A wrapper around rtl_math_expm1. + */ +inline double expm1(double fValue) +{ + return rtl_math_expm1(fValue); +} + +/** A wrapper around rtl_math_log1p. + */ +inline double log1p(double fValue) +{ + return rtl_math_log1p(fValue); +} + /** Test equality of two values with an accuracy of the magnitude of the given values scaled by 2^-48 (4 bits roundoff stripped). |