View source for delta

==== valsi ====
delta
==== type ====
experimental gismu
==== creator ====
[[personal/krtisfranks|krtisfranks]]
==== time entered ====
Fri Jul 14 05:27:00 2017
 
== English ==
=== Definition #69711 - Preferred ===
 
==== definition ====
x<sub>1</sub> (amount/value (li/ni) or labelled entity) is the (mutual) difference between/change in (states/realizations of/output from) general and relevant idea/object or subject of interest or function/aspect/property/topic/dependent parameter/dependent variable x<sub>2</sub> under or due to a change in (independent) parameter/variable/index/identification/ownership/property/aspect x<sub>3</sub> (generic name) to (later) specific state/realization/value/person/entity/meaning x<sub>4</sub> (type and dimensions match those of x<sub>3</sub>) from (earlier) specific state/realization/value/person/entity/meaning x<sub>5</sub> (type and dimensions match that of x<sub>3</sub>), under circumstances/conditions/with(in) scope/with caveats x<sub>6</sub>.
==== notes ====
Especially in reference to incremental or quantized (or discretely observed) changes. x<sub>2</sub> is an x<sub>1</sub>-type-valued function of x<sub>3</sub>; x<sub>4</sub> and x<sub>5</sub> are realizations of x<sub>3</sub> (therefore, all three share type). For example, x<sub>1</sub> could be some value with dimensions of currency/money/monetary value measured in real numbers, x<sub>2</sub> could be a specific business' profit from certain sales, x<sub>3</sub> may be time (so, x<sub>2</sub> would be the profit over time, measured in a real number of units of currency), and x<sub>4</sub> and x<sub>5</sub> would be specific times - such as today and yesterday, respectively. Ideally, all factors, variables, conditions, etc. other than x<sub>3</sub> should remain constant or there should be a control group/population which records the effects of changes in other factors, variables, conditions, etc.; however, in real life, things can be more complicated or messy and it is hard to ensure that all factors are accounted for (especially in social experiments and business); x<sub>5</sub> records those other conditions or specifies the scope (for example: subjects, time, and location) of the 'experiment'. Typically, x<sub>4</sub> will be temporally later than x<sub>5</sub>, but this need not be the case; in any case, x<sub>4</sub> is taken to be the latter state (etc.) under consideration in the present analysis in the context of this word's usage (in some sequence). x<sub>1</sub> could be "0" (whatsoever that means) - it could even be identically so; in other words, there need be no change or mutual difference, even in principle (the function/object could be constant); and this fact could even be known a priori. See also: "[[sumji|sumji]]" / "[[selsumji|selsumji]]".
==== gloss words ====

<ul><li>[[natlang/en/change|change ; in amount/variable]]</li><li>[[natlang/en/difference |difference  ; in amount/variable]]</li><li>[[natlang/en/forward difference|forward difference]]</li><li>[[natlang/en/minus|minus ; brivla]]</li></ul>

==== created by ====
[[personal/krtisfranks|krtisfranks]]
==== vote information ====
3
     
==== time ====
Wed Apr 25 04:52:56 2018

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=== Etymology ===