diff --git a/src/blackmisc/pqbase.h b/src/blackmisc/pqbase.h
index cae859a27..0216a44d2 100644
--- a/src/blackmisc/pqbase.h
+++ b/src/blackmisc/pqbase.h
@@ -208,10 +208,6 @@ namespace BlackMisc
         protected:
             /*!
              * Construct a unit with custom conversion
-             * \param name
-             * \param symbol
-             * \param displayDigits
-             * \param epsilon
              */
             template <class Converter>
             CMeasurementUnit(const QString &name, const QString &symbol, const Converter &, int displayDigits, double epsilon)
@@ -272,22 +268,16 @@ namespace BlackMisc
 
             /*!
              * \brief Equal operator ==
-             * \param other
-             * \return
              */
             bool operator == (const CMeasurementUnit &other) const;
 
             /*!
              * \brief Unequal operator !=
-             * \param other
-             * \return
              */
             bool operator != (const CMeasurementUnit &other) const;
 
             /*!
              * \brief Name such as "meter"
-             * \param i18n
-             * \return
              */
             QString getName(bool i18n = false) const
             {
@@ -296,8 +286,6 @@ namespace BlackMisc
 
             /*!
              * \brief Unit name such as "m"
-             * \param i18n
-             * \return
              */
             QString getSymbol(bool i18n = false) const
             {
@@ -314,34 +302,22 @@ namespace BlackMisc
 
             /*!
              * \brief Rounded value
-             * \param value
-             * \param digits
-             * \return
              */
             double roundValue(double value, int digits = -1) const;
 
             /*!
              * Rounded string utility method, virtual so units can have
              * specialized formatting
-             * \param value
-             * \param digits
-             * \param i18n
-             * \return
              */
             virtual QString makeRoundedQString(double value, int digits = -1, bool i18n = false) const;
 
             /*!
              * \brief Value rounded with unit, e.g. "5.00m", "30kHz"
-             * \param value
-             * \param digits
-             * \param i18n
-             * \return
              */
             virtual QString makeRoundedQStringWithUnit(double value, int digits = -1, bool i18n = false) const;
 
             /*!
              * \brief Threshold for rounding
-             * \return
              */
             double getEpsilon() const
             {
@@ -350,7 +326,6 @@ namespace BlackMisc
 
             /*!
              * \brief getDisplayDigits
-             * \return
              */
             int getDisplayDigits() const
             {
@@ -361,14 +336,11 @@ namespace BlackMisc
              * Convert from other unit to this unit.
              * \param value other value
              * \param unit  other unit
-             * \return
              */
             double convertFrom(double value, const CMeasurementUnit &unit) const;
 
             /*!
              * \brief Is given value <= epsilon?
-             * \param value
-             * \return
              */
             bool isEpsilon(double value) const
             {
@@ -384,7 +356,6 @@ namespace BlackMisc
              * \brief Unit from symbol
              * \param symbol must be a valid unit symbol (without i18n) or empty string (empty means default unit)
              * \param strict strict check means if unit is not found, program terminates
-             * \return
              */
             template <class U> static const U &unitFromSymbol(const QString &symbol, bool strict = true)
             {
@@ -401,7 +372,6 @@ namespace BlackMisc
             /*!
              * \brief Valid unit symbol
              * \param symbol must be a valid unit symbol (without i18n) or empty string (empty means default unit)
-             * \return
              */
             template <class U> static bool isValidUnitSymbol(const QString &symbol)
             {
@@ -416,7 +386,6 @@ namespace BlackMisc
 
             /*!
              * \brief Dimensionless unit
-             * \return
              */
             static CMeasurementUnit &None()
             {
diff --git a/src/blackmisc/pqphysicalquantity.h b/src/blackmisc/pqphysicalquantity.h
index 6211cb8c6..606655c26 100644
--- a/src/blackmisc/pqphysicalquantity.h
+++ b/src/blackmisc/pqphysicalquantity.h
@@ -36,7 +36,6 @@ namespace BlackMisc
 
             /*!
              * \brief Easy access to derived class (CRTP template parameter)
-             * \return
              */
             PQ const *derived() const
             {
@@ -45,7 +44,6 @@ namespace BlackMisc
 
             /*!
              * \brief Easy access to derived class (CRTP template parameter)
-             * \return
              */
             PQ *derived()
             {
@@ -55,14 +53,11 @@ namespace BlackMisc
         protected:
             /*!
              * \brief Constructor with double
-             * \param value
-             * \param unit
              */
             CPhysicalQuantity(double value, const MU &unit);
 
             /*!
              * \brief Copy constructor
-             * \param other
              */
             CPhysicalQuantity(const CPhysicalQuantity &other);
 
@@ -94,7 +89,6 @@ namespace BlackMisc
 
             /*!
              * \brief Unit
-             * \return
              */
             MU getUnit() const
             {
@@ -103,7 +97,6 @@ namespace BlackMisc
 
             /*!
              * \brief Simply set unit, do no calclulate conversion
-             * \param unit
              * \sa switchUnit
              */
             void setUnit(const MU &unit)
@@ -113,7 +106,6 @@ namespace BlackMisc
 
             /*!
              * \brief Set unit by string
-             * \param unitName
              */
             void setUnitByString(const QString &unitName)
             {
@@ -122,7 +114,6 @@ namespace BlackMisc
 
             /*!
              * \brief Unit
-             * \return
              */
             QString getUnitSymbol() const
             {
@@ -131,21 +122,16 @@ namespace BlackMisc
 
             /*!
              * \brief Change unit, and convert value to maintain the same quantity
-             * \param newUnit
-             * \return
              */
             PQ &switchUnit(const MU &newUnit);
 
             /*!
              * \brief Value in given unit
-             * \param unit
-             * \return
              */
             double value(const MU &unit) const;
 
             /*!
              * \brief Value in current unit
-             * \return
              */
             double value() const
             {
@@ -154,7 +140,6 @@ namespace BlackMisc
 
             /*!
              * \brief Set value in current unit
-             * \param value
              */
             void setCurrentUnitValue(double value)
             {
@@ -163,16 +148,11 @@ namespace BlackMisc
 
             /*!
              * \brief Rounded value in given unit
-             * \param unit
-             * \param digits
-             * \return
              */
             double valueRounded(const MU &unit, int digits = -1) const;
 
             /*!
              * \brief Rounded value in current unit
-             * \param digits
-             * \return
              */
             double valueRounded(int digits = -1) const
             {
@@ -181,18 +161,11 @@ namespace BlackMisc
 
             /*!
              * \brief Value to QString with the given unit, e.g. "5.00m"
-             * \param unit
-             * \param digits
-             * \param i18n
-             * \return
              */
             QString valueRoundedWithUnit(const MU &unit, int digits = -1, bool i18n = false) const;
 
             /*!
              * \brief Value to QString with the current unit, e.g. "5.00m"
-             * \param digits
-             * \param i18n
-             * \return
              */
             QString valueRoundedWithUnit(int digits = -1, bool i18n = false) const
             {
@@ -201,48 +174,36 @@ namespace BlackMisc
 
             /*!
              * \brief Change value without changing unit
-             * \param value
              */
             void setValueSameUnit(double value);
 
             /*!
              * \brief Add to the value in the current unit.
-             * \param value
              */
             void addValueSameUnit(double value);
 
             /*!
              * \brief Substract from the value in the current unit.
-             * \param value
              */
             void substractValueSameUnit(double value);
 
             /*!
             * \brief Multiply operator *=
-            * \param multiply
-            * \return
             */
             CPhysicalQuantity &operator *=(double multiply);
 
             /*!
              * \brief Divide operator /=
-             * \param divide
-             * \return
              */
             CPhysicalQuantity &operator /=(double divide);
 
             /*!
              * \brief Operator *
-             * \param multiply
-             * \return
              */
             PQ operator *(double multiply) const;
 
             /*!
              * \brief Operator to support commutative multiplication
-             * \param factor
-             * \param other
-             * \return
              */
             friend PQ operator *(double factor, const PQ &other)
             {
@@ -251,84 +212,61 @@ namespace BlackMisc
 
             /*!
              * \brief Operator /
-             * \param divide
-             * \return
              */
             PQ operator /(double divide) const;
 
             /*!
              * \brief Equal operator ==
-             * \param other
-             * \return
              */
             bool operator==(const CPhysicalQuantity &other) const;
 
             /*!
              * \brief Not equal operator !=
-             * \param other
-             * \return
              */
             bool operator!=(const CPhysicalQuantity &other) const;
 
             /*!
              * \brief Plus operator +=
-             * \param other
-             * \return
              */
             CPhysicalQuantity &operator +=(const CPhysicalQuantity &other);
 
             /*!
              * \brief Minus operator-=
-             * \param other
-             * \return
              */
             CPhysicalQuantity &operator -=(const CPhysicalQuantity &other);
 
             /*!
              * \brief Greater operator >
-             * \param other
-             * \return
              */
             bool operator >(const CPhysicalQuantity &other) const;
 
             /*!
              * \brief Less operator <
-             * \param other
-             * \return
              */
             bool operator <(const CPhysicalQuantity &other) const;
 
             /*!
              * \brief Less equal operator <=
-             * \param other
-             * \return
              */
             bool operator <=(const CPhysicalQuantity &other) const;
 
             /*!
              * \brief Greater equal operator >=
-             * \param other
-             * \return
              */
             bool operator >=(const CPhysicalQuantity &other) const;
 
             /*!
              * \brief Plus operator +
-             * \param other
-             * \return
              */
             PQ operator +(const PQ &other) const;
 
             /*!
              * \brief Minus operator -
-             * \param other
-             * \return
              */
             PQ operator -(const PQ &other) const;
 
             /*!
              * \brief Quantity value <= epsilon
-             * \return
              */
             bool isZeroEpsilonConsidered() const
             {
@@ -337,7 +275,6 @@ namespace BlackMisc
 
             /*!
              * \brief Value >= 0 epsilon considered
-             * \return
              */
             bool isPositiveWithEpsilonConsidered() const
             {
@@ -346,7 +283,6 @@ namespace BlackMisc
 
             /*!
              * \brief Value <= 0 epsilon considered
-             * \return
              */
             bool isNegativeWithEpsilonConsidered() const
             {
diff --git a/src/blackmisc/pqunits.h b/src/blackmisc/pqunits.h
index 70dcd6f4b..f4bb769fd 100644
--- a/src/blackmisc/pqunits.h
+++ b/src/blackmisc/pqunits.h
@@ -59,13 +59,11 @@ namespace BlackMisc
 
             /*!
              * \brief Default unit
-             * \return
              */
             static const CLengthUnit &defaultUnit() { return m(); }
 
             /*!
              * \brief Meter m
-             * \return
              */
             static const CLengthUnit &m()
             {
@@ -75,7 +73,6 @@ namespace BlackMisc
 
             /*!
              * \brief Nautical miles NM
-             * \return
              */
             static const CLengthUnit &NM()
             {
@@ -85,7 +82,6 @@ namespace BlackMisc
 
             /*!
              * \brief Foot ft
-             * \return
              */
             static const CLengthUnit &ft()
             {
@@ -95,7 +91,6 @@ namespace BlackMisc
 
             /*!
              * \brief Kilometer km
-             * \return
              */
             static const CLengthUnit &km()
             {
@@ -105,7 +100,6 @@ namespace BlackMisc
 
             /*!
              * \brief Centimeter cm
-             * \return
              */
             static const CLengthUnit &cm()
             {
@@ -115,7 +109,6 @@ namespace BlackMisc
 
             /*!
              * \brief International mile
-             * \return
              */
             static const CLengthUnit &mi()
             {
@@ -125,7 +118,6 @@ namespace BlackMisc
 
             /*!
              * \brief Statute mile
-             * \return
              */
             static const CLengthUnit &SM()
             {
@@ -135,7 +127,6 @@ namespace BlackMisc
 
             /*!
              * \brief All units
-             * \return
              */
             static const QList<CLengthUnit> &allUnits()
             {
@@ -195,7 +186,6 @@ namespace BlackMisc
 
             /*!
              * \brief Default unit
-             * \return
              */
             static const CAngleUnit &defaultUnit() { return deg(); }
 
@@ -206,7 +196,6 @@ namespace BlackMisc
 
             /*!
              * \brief Radians
-             * \return
              */
             static const CAngleUnit &rad()
             {
@@ -216,7 +205,6 @@ namespace BlackMisc
 
             /*!
              * \brief Degrees
-             * \return
              */
             static const CAngleUnit &deg()
             {
@@ -226,7 +214,6 @@ namespace BlackMisc
 
             /*!
              * \brief Sexagesimal degree (degrees, minutes, seconds, decimal seconds)
-             * \return
              */
             static const CAngleUnit &sexagesimalDeg()
             {
@@ -238,7 +225,6 @@ namespace BlackMisc
 
             /*!
              * \brief Sexagesimal degree (degrees, minutes, decimal minutes)
-             * \return
              */
             static const CAngleUnit &sexagesimalDegMin()
             {
@@ -250,7 +236,6 @@ namespace BlackMisc
 
             /*!
              * \brief All units
-             * \return
              */
             static const QList<CAngleUnit> &allUnits()
             {
@@ -306,13 +291,11 @@ namespace BlackMisc
 
             /*!
              * \brief Default unit
-             * \return
              */
             static const CFrequencyUnit &defaultUnit() { return Hz(); }
 
             /*!
              * \brief Hertz
-             * \return
              */
             static const CFrequencyUnit &Hz()
             {
@@ -322,7 +305,6 @@ namespace BlackMisc
 
             /*!
              * \brief Kilohertz
-             * \return
              */
             static const CFrequencyUnit &kHz()
             {
@@ -332,7 +314,6 @@ namespace BlackMisc
 
             /*!
              * \brief Megahertz
-             * \return
              */
             static const CFrequencyUnit &MHz()
             {
@@ -342,7 +323,6 @@ namespace BlackMisc
 
             /*!
              * \brief Gigahertz
-             * \return
              */
             static const CFrequencyUnit &GHz()
             {
@@ -352,7 +332,6 @@ namespace BlackMisc
 
             /*!
              * \brief All units
-             * \return
              */
             static const QList<CFrequencyUnit> &allUnits()
             {
@@ -409,13 +388,11 @@ namespace BlackMisc
 
             /*!
              * \brief Default unit
-             * \return
              */
             static const CMassUnit &defaultUnit() { return kg(); }
 
             /*!
              * \brief Kilogram, SI base unit
-             * \return
              */
             static const CMassUnit &kg()
             {
@@ -425,7 +402,6 @@ namespace BlackMisc
 
             /*!
              * \brief Gram, SI unit
-             * \return
              */
             static const CMassUnit &g()
             {
@@ -435,7 +411,6 @@ namespace BlackMisc
 
             /*!
              * \brief Tonne, aka metric ton (1000kg)
-             * \return
              */
             static const CMassUnit &tonne()
             {
@@ -445,7 +420,6 @@ namespace BlackMisc
 
             /*!
              * \brief Short ton (2000lb) used in the United States
-             * \return
              */
             static const CMassUnit &shortTon()
             {
@@ -455,7 +429,6 @@ namespace BlackMisc
 
             /*!
              * \brief Pound, aka mass pound
-             * \return
              */
             static const CMassUnit &lb()
             {
@@ -465,7 +438,6 @@ namespace BlackMisc
 
             /*!
              * \brief All units
-             * \return
              */
             static const QList<CMassUnit> &allUnits()
             {
@@ -525,13 +497,11 @@ namespace BlackMisc
 
             /*!
              * \brief Default unit
-             * \return
              */
             static const CPressureUnit &defaultUnit() { return hPa(); }
 
             /*!
              * \brief Pascal
-             * \return
              */
             static const CPressureUnit &Pa()
             {
@@ -541,7 +511,6 @@ namespace BlackMisc
 
             /*!
              * \brief Hectopascal
-             * \return
              */
             static const CPressureUnit &hPa()
             {
@@ -551,7 +520,6 @@ namespace BlackMisc
 
             /*!
              * \brief Pounds per square inch
-             * \return
              */
             static const CPressureUnit &psi()
             {
@@ -561,7 +529,6 @@ namespace BlackMisc
 
             /*!
              * \brief Bar
-             * \return
              */
             static const CPressureUnit &bar()
             {
@@ -571,7 +538,6 @@ namespace BlackMisc
 
             /*!
              * \brief Millibar, actually the same as hPa
-             * \return
              */
             static const CPressureUnit &mbar()
             {
@@ -581,7 +547,6 @@ namespace BlackMisc
 
             /*!
              * \brief Inch of mercury at 0°C
-             * \return
              */
             static const CPressureUnit &inHg()
             {
@@ -591,7 +556,6 @@ namespace BlackMisc
 
             /*!
              * \brief Millimeter of mercury
-             * \return
              */
             static const CPressureUnit &mmHg()
             {
@@ -601,7 +565,6 @@ namespace BlackMisc
 
             /*!
              * \brief All units
-             * \return
              */
             static const QList<CPressureUnit> &allUnits()
             {
@@ -668,13 +631,11 @@ namespace BlackMisc
 
             /*!
              * \brief Default unit
-             * \return
              */
             static const CTemperatureUnit &defaultUnit() { return C(); }
 
             /*!
              * \brief Kelvin
-             * \return
              */
             static const CTemperatureUnit &K()
             {
@@ -684,7 +645,6 @@ namespace BlackMisc
 
             /*!
              * \brief Centigrade C
-             * \return
              */
             static const CTemperatureUnit &C()
             {
@@ -694,7 +654,6 @@ namespace BlackMisc
 
             /*!
              * \brief Fahrenheit F
-             * \return
              */
             static const CTemperatureUnit &F()
             {
@@ -704,7 +663,6 @@ namespace BlackMisc
 
             /*!
              * \brief All units
-             * \return
              */
             static const QList<CTemperatureUnit> &allUnits()
             {
@@ -762,13 +720,11 @@ namespace BlackMisc
 
             /*!
              * Default unit
-             * \return
              */
             static const CSpeedUnit &defaultUnit() { return m_s(); }
 
             /*!
              * \brief Meter/second m/s
-             * \return
              */
             static const CSpeedUnit &m_s()
             {
@@ -778,7 +734,6 @@ namespace BlackMisc
 
             /*!
              * \brief Knots
-             * \return
              */
             static const CSpeedUnit &kts()
             {
@@ -788,7 +743,6 @@ namespace BlackMisc
 
             /*!
              * \brief Nautical miles per hour NM/h (same as kts)
-             * \return
              */
             static const CSpeedUnit &NM_h()
             {
@@ -798,7 +752,6 @@ namespace BlackMisc
 
             /*!
              * \brief Feet/second ft/s
-             * \return
              */
             static const CSpeedUnit &ft_s()
             {
@@ -808,7 +761,6 @@ namespace BlackMisc
 
             /*!
              * \brief Feet/min ft/min
-             * \return
              */
             static const CSpeedUnit &ft_min()
             {
@@ -818,7 +770,6 @@ namespace BlackMisc
 
             /*!
              * \brief Kilometer/hour km/h
-             * \return
              */
             static const CSpeedUnit &km_h()
             {
@@ -828,7 +779,6 @@ namespace BlackMisc
 
             /*!
              * \brief All units
-             * \return
              */
             static const QList<CSpeedUnit> &allUnits()
             {
@@ -889,7 +839,6 @@ namespace BlackMisc
 
             /*!
              * Default unit
-             * \return
              */
             static const CTimeUnit &defaultUnit() { return s(); }
 
@@ -900,7 +849,6 @@ namespace BlackMisc
 
             /*!
              * \brief Second s
-             * \return
              */
             static const CTimeUnit &s()
             {
@@ -910,7 +858,6 @@ namespace BlackMisc
 
             /*!
              * \brief Millisecond ms
-             * \return
              */
             static const CTimeUnit &ms()
             {
@@ -920,7 +867,6 @@ namespace BlackMisc
 
             /*!
              * \brief Hour
-             * \return
              */
             static const CTimeUnit &h()
             {
@@ -928,10 +874,8 @@ namespace BlackMisc
                 return h;
             }
 
-
             /*!
              * \brief Minute
-             * \return
              */
             static const CTimeUnit &min()
             {
@@ -941,7 +885,6 @@ namespace BlackMisc
 
             /*!
              * \brief Day
-             * \return
              */
             static const CTimeUnit &d()
             {
@@ -984,7 +927,6 @@ namespace BlackMisc
 
             /*!
              * \brief All units
-             * \return
              */
             static const QList<CTimeUnit> &allUnits()
             {
@@ -1041,13 +983,11 @@ namespace BlackMisc
 
             /*!
              * Default unit
-             * \return
              */
             static const CAccelerationUnit &defaultUnit() { return m_s2(); }
 
             /*!
              * \brief Meter/second^2 (m/s^2)
-             * \return
              */
             static const CAccelerationUnit &m_s2()
             {
@@ -1057,7 +997,6 @@ namespace BlackMisc
 
             /*!
              * \brief Feet/second^2
-             * \return
              */
             static const CAccelerationUnit &ft_s2()
             {
@@ -1067,7 +1006,6 @@ namespace BlackMisc
 
             /*!
              * \brief All units
-             * \return
              */
             static const QList<CAccelerationUnit> &allUnits()
             {