cStdMath

Class for standard math operations. More...

Static Public Member Functions
static tInt32	GetProgressValue (tInt32 nValue, tInt32 nTotal)
static tResult	UnitConversion (tFloat64 *pf64Value, const cString &strSourceUnit, const cString &strDestinationUnit=cString::Empty)
	Unit Conversion. More...
static tBool	CompareFloat (tFloat64 f64Value1, tFloat64 f64Value2, tFloat64 f64RelativeError=0.000000000000001)
	Compare of Float value with relative error. More...

Static Public Attributes
static const tFloat64	MATH_E
	Euler's number.
static const tFloat64	MATH_LOG2E
	logarithm to the basis 2 of Euler's number
static const tFloat64	MATH_LOG10E
	logarithm to the basis 10 of Euler's number
static const tFloat64	MATH_LN2
	natural logarithm of two
static const tFloat64	MATH_LN10
	natural logarithm of ten
static const tFloat64	MATH_PI
	pi
static const tFloat64	MATH_PI_2
	pi / 2
static const tFloat64	MATH_PI_4
	pi / 4
static const tFloat64	MATH_1_PI
	1 / pi
static const tFloat64	MATH_2_PI
	2 / pi
static const tFloat64	MATH_2_SQRTPI
	two divided by square root of pi
static const tFloat64	MATH_SQRT2
	square root of two
static const tFloat64	MATH_SQRT1_2
	square root of 1/2
static const tFloat64	MATH_DEG2RAD
	constant to convert from degree to radiant
static const tFloat64	MATH_RAD2DEG
	constant to convert from radiant to degree

Detailed Description

Class for standard math operations.

Definition at line 19 of file stdmath.h.

Member Function Documentation

CompareFloat()

static tBool CompareFloat ( tFloat64  f64Value1, tFloat64  f64Value2, tFloat64  f64RelativeError = 0.000000000000001  )

static

Compare of Float value with relative error.

Parameters

f64Value1	[in] first float value to compare
f64Value2	[in] second float value to compare
f64RelativeError	[in] relative error in percent between 0..1 for comparisons

Return values

tTrue	float values are equal (within relative error range)
tFalse	float values are not equal (within relative error range)

This method is real-time safe.\nSee @ref page_real_time_safe.\n

GetProgressValue()

static tInt32 GetProgressValue ( tInt32  nValue, tInt32  nTotal  )

static

Parameters

nValue	[in] Current integer value
nTotal	[in] Maximum integer value that represents 100 percent.

Returns

Calculated percentage.

This method is real-time safe.\nSee @ref page_real_time_safe.\n

UnitConversion()

static tResult UnitConversion ( tFloat64 *  pf64Value, const cString &  strSourceUnit, const cString &  strDestinationUnit = cString::Empty  )

static

Unit Conversion.

This method converts a float value with a special unit into an other.

Parameters

pf64Value	[inout] float value to convert
strSourceUnit	[in] source unit of float value
strDestinationUnit	[in] unit to convert float value to

Returns

Standard result code.