quanta.quantity - Function

make a quantity from a string or from a value and a unit string

Synopsis
quantity(v, name)

Arguments

v	in	value to convert to quantity
		Allowed:	quantity or string or numeric
		Default:	'1' or 1.0
name	in	unit string if v numeric
		Allowed:	string
		Default:	''

Returns
quantity

Description
quantity makes a quantity from a string, or from a value and a string. Note that a function unit exists which is a synonym for quantity. If only a string is given, it can be a scalar string, a vector of strings, or an array of strings. The result will be a scalar quantity, or an array of quantities. If a numeric value and a string are given, the numeric value can be any numeric type, and can also be an array or a vector of them. See the introduction for an example of all the possibilities.

Example

- tu := dq.quantity('1Jy')			# make quantity
- tu
[value=1, unit=Jy] 
- dq.quantity(tu)				# also accepts a quantity
[value=1, unit=Jy] 
- tu := dq.unit('1Jy')			# make quantity with synonym
- tu
[value=1, unit=Jy] 
- dq.quantity(-1.3, 'Jy')		# make quantity with separate value
[value=-1.3, unit=Jy]

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	Package	general
	Module	quanta
	Tool	quanta