Definition in file qwt_math.h.
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Defines | |
| #define | LOG10_2 0.30102999566398119802 |
| #define | LOG10_3 0.47712125471966243540 |
| #define | LOG10_5 0.69897000433601885749 |
| #define | M_2PI 6.28318530717958623200 |
| #define | LOG_MIN 1.0e-100 |
| #define | LOG_MAX 1.0e100 |
| #define | M_E 2.7182818284590452354 |
| #define | M_LOG2E 1.4426950408889634074 |
| #define | M_LN2 0.69314718055994530942 |
| #define | M_LN10 2.30258509299404568402 |
| #define | M_PI 3.14159265358979323846 |
| #define | M_PI_2 1.57079632679489661923 |
| #define | M_PI_4 0.78539816339744830962 |
| #define | M_1_PI 0.31830988618379067154 |
| #define | M_2_PI 0.63661977236758134308 |
| #define | M_2_SQRTPI 1.12837916709551257390 |
| #define | M_SQRT2 1.41421356237309504880 |
| #define | M_SQRT1_2 0.70710678118654752440 |
| #define | qwtMax QMAX |
| #define | qwtMin QMIN |
| #define | qwtAbs QABS |
| #define | qwtInt qRound |
Functions | |
| QWT_EXPORT double | qwtCeil125 (double x) |
| QWT_EXPORT double | qwtFloor125 (double x) |
| QWT_EXPORT double | qwtGetMin (double *array, int size) |
| QWT_EXPORT double | qwtGetMax (double *array, int size) |
| QWT_EXPORT void | qwtTwistArray (double *array, int size) |
| QWT_EXPORT int | qwtChkMono (double *array, int size) |
| QWT_EXPORT void | qwtLinSpace (double *array, int size, double xmin, double xmax) |
| QWT_EXPORT void | qwtLogSpace (double *array, int size, double xmin, double xmax) |
| template<class T> int | qwtSign (const T &x) |
| template<class T> T | qwtSqr (const T &x) |
| template<class T> void | qwtCopyArray (T *dest, T *src, int n) |
| template<class T> void | qwtShiftArray (T *arr, int size, int di) |
| template<class T> void | qwtSwap (T &x1, T &x2) |
| template<class T> void | qwtSort (const T &x1, const T &x2, T &xmin, T &xmax) |
| template<class T> void | qwtSort (T &x1, T &x2) |
| template<class T> T | qwtLim (const T &x, const T &x1, const T &x2) |
| QPoint | qwtPolar2Pos (const QPoint ¢er, double radius, double angle) |
| QPoint | qwtDegree2Pos (const QPoint ¢er, double radius, double angle) |
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Maximum value for logarithmic scales. Definition at line 46 of file qwt_math.h. Referenced by QwtAutoScale::setRange(), and QwtAutoScale::setReference(). |
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Mininum value for logarithmic scales. Definition at line 41 of file qwt_math.h. Referenced by QwtAutoScale::setRange(), and QwtAutoScale::setReference(). |
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Find the smallest value out of {1,2,5}*10^n with an integer number n which is greater than or equal to x.
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Checks if an array is a strictly monotonic sequence.
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Copy an array into another.
Referenced by qwtShiftArray(). |
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Find the largest value out of {1,2,5}*10^n with an integer number n which is smaller than or equal to x.
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Find the largest value in an array.
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Find the smallest value in an array.
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Limit a value to fit into a specified interval.
Referenced by QwtArrowButton::QwtArrowButton(), QwtScaleDraw::setAngleRange(), QwtDblRange::setRange(), QwtWheel::setTickCnt(), QwtWheel::setTotalAngle(), QwtWheel::setViewAngle(), and QwtCurve::verifyRange(). |
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Create an array of equally spaced values.
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Create an array of logarithmically equally spaced values.
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Shift an array by a specified number of positions.
References qwtCopyArray(). |
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Return the sign. Definition at line 118 of file qwt_math.h. |
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Sort two values in ascending order. Definition at line 226 of file qwt_math.h. Referenced by QwtCurve::verifyRange(). |
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Sort two values in ascending order.
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Return the square of a number. Definition at line 130 of file qwt_math.h. Referenced by QwtPlot::closestCurve(), QwtPlot::closestMarker(), and QwtCurve::drawSpline(). |
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Swap two values. Definition at line 190 of file qwt_math.h. |
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Invert the order of array elements.
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1.3.8