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Qu'est-ce (qui) est lost in the underflow - définition

Lost in the Mall Technique; Lost in the mall experiment

lost in the underflow

<jargon> Too small to be worth considering; more specifically, small beyond the limits of accuracy or measurement. This is a reference to "floating point underflow". The Hacker's Jargon File claimed that it is also a pun on "undertow" (a kind of fast, cold current that sometimes runs just offshore and can be dangerous to swimmers). "Well, sure, photon pressure from the stadium lights alters the path of a thrown baseball, but that effect gets lost in the underflow". Compare epsilon, epsilon squared; see also overflow bit. (1997-09-05)

Arithmetic underflow

CONDITION IN PROGRAMMING WHERE A CALCULATED VALUE IS TOO SMALL TO BE REPRESENTED IN MEMORY

Underflow

The term arithmetic underflow (also floating point underflow, or just underflow) is a condition in a computer program where the result of a calculation is a number of more precise absolute value than the computer can actually represent in memory on its central processing unit (CPU).

https://en.wikipedia.org/wiki/Arithmetic_underflow

underflow

CONDITION IN PROGRAMMING WHERE A CALCULATED VALUE IS TOO SMALL TO BE REPRESENTED IN MEMORY

Underflow

<programming> (or "floating point underflow", "floating underflow", after "overflow") A condition that can occur when the result of a floating-point operation would be smaller in magnitude (closer to zero, either positive or negative) than the smallest quantity representable. Underflow is actually (negative) overflow of the exponent of the floating point quantity. For example, an eight-bit {twos complement} exponent can represent multipliers of 2^-128 to 2^127. A result less than 2^-128 would cause underflow. Depending on the processor, the programming language and the run-time system, underflow may set a status bit, raise an exception or generate a hardware interrupt or some combination of these effects. Alternatively, it may just be ignored and zero substituted for the unrepresentable value, though this might lead to a later divide by zero error which cannot be so easily ignored. (2006-11-09)

Wikipédia

Lost in the mall technique

The "lost in the mall" technique or experiment is a memory implantation technique used to demonstrate that confabulations about events that never took place – such as having been lost in a shopping mall as a child – can be created through suggestions made to experimental subjects that their older relative was present at the time. It was first developed by Elizabeth Loftus and her undergraduate student Jim Coan, as support for the thesis that it is possible to implant entirely false memories in people. The technique was developed in the context of the debate about the existence of repressed memories and false memory syndrome.

https://en.wikipedia.org/wiki/Lost in the mall technique