 OpenMS  3.0.0
MathFunctions.h File Reference
`#include <OpenMS/CONCEPT/Types.h>`
`#include <OpenMS/CONCEPT/Exception.h>`
`#include <boost/random/mersenne_twister.hpp>`
`#include <boost/random/uniform_int.hpp>`
`#include <cmath>`
`#include <utility>`
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## Classes

class  RandomShuffler

## Namespaces

OpenMS
Main OpenMS namespace.

OpenMS::Math
Math namespace.

## Functions

template<typename T >
bool extendRange (T &min, T &max, const T &value)
Given an interval/range and a new value, extend the range to include the new value if needed. More...

static double ceilDecimal (double x, int decPow)
rounds `x` up to the next decimal power 10 ^ `decPow` More...

static double roundDecimal (double x, int decPow)
rounds `x` to the next decimal power 10 ^ `decPow` More...

static double intervalTransformation (double x, double left1, double right1, double left2, double right2)
transforms point `x` of interval [left1,right1] into interval [left2,right2] More...

double linear2log (double x)
Transforms a number from linear to log10 scale. Avoids negative logarithms by adding 1. More...

double log2linear (double x)
Transforms a number from log10 to to linear scale. Subtracts the 1 added by linear2log(double) More...

bool isOdd (UInt x)
Returns true if the given integer is odd. More...

template<typename T >
round (T x)
Rounds the value. More...

static bool approximatelyEqual (double a, double b, double tol)
Returns if `a` is approximately equal `b` , allowing a tolerance of `tol`. More...

template<typename T >
gcd (T a, T b)
Returns the greatest common divisor (gcd) of two numbers by applying the Euclidean algorithm. More...

template<typename T >
gcd (T a, T b, T &u1, T &u2)
Returns the greatest common divisor by applying the extended Euclidean algorithm (Knuth TAoCP vol. 2, p342). Calculates u1, u2 and u3 (which is returned) so that a * u1 + b * u2 = u3 = gcd(a, b, u1, u2) More...

template<typename T >
getPPM (T mz_obs, T mz_ref)
Compute parts-per-million of two m/z values. More...

template<typename T >
getPPMAbs (T mz_obs, T mz_ref)
Compute absolute parts-per-million of two m/z values. More...

template<typename T >
ppmToMass (T ppm, T mz_ref)
Compute the mass diff in [Th], given a ppm value and a reference point. More...

template<typename T >
ppmToMassAbs (T ppm, T mz_ref)

static std::pair< double, doublegetTolWindow (double val, double tol, bool ppm)
Return tolerance window around `val` given tolerance `tol`. More...

template<typename T1 >
T1::value_type quantile (const T1 &x, double q)
Returns the value of the `q` th quantile (0-1) in a sorted non-empty vector `x`. More...