What's the difference between and

Rational vs Speculative - What's the difference?

rational | speculative |

As adjectives the difference between rational and speculative

is that rational is capable of reasoning while speculative is .

As a noun rational

is (mathematics) a rational number: a number that can be expressed as the quotient of two integers.

rational

English

Alternative forms

* rationall (obsolete)

Etymology 1

From (etyl) rationel, rational, from (etyl)

• Capable of reasoning.
• *
• Logically sound; not contradictory or otherwise absurd.
• (label) Healthy or balanced intellectually; exhibiting reasonableness.
• *{{quote-magazine, date=2014-06-21, volume=411, issue=8892, magazine=(The Economist)
• , title= Magician’s brain , passage=The [Isaac] Newton that emerges from the [unpublished] manuscripts is far from the popular image of a rational practitioner of cold and pure reason. The architect of modern science was himself not very modern. He was obsessed with alchemy.}}
• Of a number, capable of being expressed as the ratio of two integers.
• ¾ is a rational number, but ?2 is an irrational number.
• Of an algebraic expression, capable of being expressed as the ratio of two polynomials.
• (label) Expressing the type, structure, relations, and reactions of a compound; graphic; said of formulae.
• Antonyms
* (reasonable) absurd, irrational, nonsensical * (capable of reasoning) arational, irrational, non-rational * (number theory) irrational

Etymology 2

From (etyl) rational, from , for which see the first etymology.

Noun

(en noun)
• (mathematics) A rational number: a number that can be expressed as the quotient of two integers.
• The quotient of two rationals''' is again a '''rational .
• A rational being.
• (Young)

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