raíz por defecto

12:56 Dec 12, 2019
This question was closed without grading. Reason: Other

Spanish to English translations [PRO]
Science - Mathematics & Statistics
Spanish term or phrase: raíz por defecto
I will also post "raíz por exceso". When estimating the square root of an imperfect square, the raíz por defecto and raíz por exceso are the square roots of the closest perfect squares.

Example:
42 is an imperfect square.
The closest perfect squares are 36 and 49.
Their square roots are 6 and 7.
So 6 is the raíz por defecto and 7 is the raíz por exceso.

Any ideas? I've found this referenced as "excess and deficiency" only in texts about ancient Chinese math techniques and really bad translations.

TIA!!
S Ben Price
Spain
Local time: 16:51


Summary of answers provided
4floor root
MPGS


  

Answers


15 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5
floor root


Explanation:
vs ceiling root

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

hth
:-)



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Note added at 3 hrs (2019-12-12 16:52:54 GMT)
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The question is about math. The translations I submit are in math terms. Floor_and_ceiling_functions are (according to wikipedia) functions of real numbers (e.g. squareroot(42) = 6.4807...) that return the closest integers (6 and 7 in the example) that are larger ('ceiling') or lower ('floor') than the real number (6.4807...). Wikipedia explains it not just for squareroots but also for many other functions. Right on the target!
:-)

MPGS
Local time: 16:51
Works in field
Native speaker of: Native in SpanishSpanish
PRO pts in category: 24

Peer comments on this answer (and responses from the answerer)
neutral  Francois Boye: your attachment is off the mark!
1 hr
  -> Thank you Francois. I'll add an explanation.
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