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Subsections

6.24.3 Member functions


6.24.3.1 char

gives the unit's label (e.g. V for Volt) back.


6.24.3.2 dbref

returns reference value for 0 dB when calculating decibel values from data of this unit.


6.24.3.3 dbscale

returns scaling value when calculating decibel values from data of this unit. dpscale returns either 10 (for power or energy units (e.g. Watt)) or 20 (for all other units (e.g. Volt).


6.24.3.4 display


6.24.3.5 double

gives a row vector which's first element contains the unit's factor and the remaining elements contain the exponents of the SI basic units.


6.24.3.6 eq


6.24.3.7 exponents

returns dimension exponents of unit q.


6.24.3.8 factor

returns factor of unit q.


6.24.3.9 label


6.24.3.10 mpower

Syntax: take unit u to power p, p must be a scalar.


6.24.3.11 mrdivide


6.24.3.12 mtimes


6.24.3.13 name

returns name of unit q.


6.24.3.14 quantity

returns quantity name of unit q. If argument which is omitted, the english quantity name will be returned.


6.24.3.15 unit

unit class constructor

Class unit tries to modell physical units a physical unit is mainly can be described by the exponents of the basic SI units, namely mass, length, time, current, temperature, luminal_intensity, mole and plane_angle. Each unit belongs to a quantity, e.g. the unit s (second) is used when measuring the quantity TIME. Each unit has a name, e.g. 'Ampere', 'Volt' , 'Joule', 'hour', and an abbreviation, called label ('A', 'V', 'J', 'h'). Unfortunately, the correspondence between these items is not always bijectiv to find corresponding items, a table of units in the file units.mat is used.

A unit object can be created with different types of arguments:

Some arithmetic can be done with units:


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Next: 6.25 Class list Up: 6.24 Class unit Previous: 6.24.2 Attributes   Contents
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