A Release is a somewhat variable quantity.
In mathematics, the italic form (n) is the common symbol for a variable quantity, especially one which represents an integer.
"The count" is a variable quantity, which though beginning with a value of zero, will soon have its value changed several times.
From the 740s until the end of the Northumbrian kingdom, coins were issued by most kings, although in variable quantities.
Instead of using discrete ratios to place intervals, he used continuously variable quantities.
To relate these variable quantities to molecular processes is the purpose of many theoretical and experimental investigations.
Trust, in this sort of enterprise, was a variable quantity.
Dead reckoning is a process for estimating the value of a variable quantity by using a previous value and adding any changes.
This makes it a highly variable quantity between tuning systems.
While they were both involved in the process of creating a mathematical system to deal with variable quantities their elementary base was different.