MathUtils.hh File Reference
#include "Rivet/Math/MathHeader.hh"
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Namespaces | |
| namespace | Rivet |
Number comparisons etc. | |
| enum | RangeBoundary { OPEN = 0, SOFT = 0, CLOSED = 1, HARD = 1 } |
| bool | isZero (double val, double tolerance=1E-8) |
| bool | isZero (long val, double UNUSED(tolerance)=1E-8) |
| int | sign (double val) |
| Find the sign of a number. | |
| int | sign (int val) |
| Find the sign of a number. | |
| int | sign (long val) |
| Find the sign of a number. | |
| bool | fuzzyEquals (double a, double b, double tolerance=1E-5) |
| bool | fuzzyEquals (long a, long b, double UNUSED(tolerance)=1E-5) |
| template<typename NUM> | |
| bool | inRange (NUM value, NUM low, NUM high, RangeBoundary lowbound=CLOSED, RangeBoundary highbound=OPEN) |
| bool | inRange (int value, int low, int high, RangeBoundary lowbound=CLOSED, RangeBoundary highbound=CLOSED) |
| template<typename Num> | |
| Num | sqr (Num a) |
| Named number-type squaring operation. | |
Functions | |
Statistics functions | |
| double | mean (const vector< int > &sample) |
| Calculate the mean of a sample. | |
| double | covariance (const vector< int > &sample1, const vector< int > &sample2) |
| Calculate the covariance (variance) between two samples. | |
| double | correlation (const vector< int > &sample1, const vector< int > &sample2) |
| Calculate the correlation strength between two samples. | |
Angle range mappings | |
| double | _mapAngleM2PITo2Pi (double angle) |
| double | mapAngleMPiToPi (double angle) |
| Map an angle into the range (-PI, PI]. | |
| double | mapAngle0To2Pi (double angle) |
| Map an angle into the range [0, 2PI). | |
| double | mapAngle0ToPi (double angle) |
| Map an angle into the range [0, PI]. | |
Phase space measure helpers | |
| double | deltaPhi (double phi1, double phi2) |
| double | deltaR (double y1, double phi1, double y2, double phi2) |
| double | rapidity (double E, double pz) |
| Calculate a rapidity value from the supplied energy E and longitudinal momentum . | |