The act or process of putting in a particular position or determining the psition of.
1) General: Explicitly stated, stipulated, or expressed.
M.E., from O.Fr. positif, from L. positivus "placed, settled; positive" (opposed to naturalis "natural"), from posit-, from positus "placed, put," p.p. of ponere "to put, place, set" + -ivus a suffix of adjectives.
Dâhidâr, from dâhid- + -âr. The first component is the past stem of *dâhidan "to put, create, determine," variant of dehidan, dâdan "to give;" from Mid.Pers. dâdan, dahidan "to give; to create;" O.Pers. dā- "to give, grant, yield;" Av. dā- "to give, grant; put; create; determine;" dāhi "he would give/put" (single second person, subjunctive transitive), dadāiti "he gives;" cf. Skt. dadáti "he gives;" Gk. tithenai "to place, put, set," didomi "I give;" L. dare "to give, offer," facere "to do, to make;" Rus. delat' "to do;" O.H.G. tuon, Ger. tun, O.E. don "to do;" PIE base *dhe- "to put, to do." The second component -âr, accusative suffix; on the model of gereftâr "captive, involved (in trouble)," didâr "exposed to view."
Fr.: charge positive
A charge having sign opposite to that of the electron.
Fr.: correlation positive
Same as → direct correlation.
Fr.: rétroaction positive
Fr.: asymétrie positive
Of a distribution function, a skewness in which the right tail (tail at the large end of the distribution) is more pronounced than the left tail (tail at small end of the distribution). → negative skewness.
The quality or state of being positive; positivity.
Any doctrine that excludes a priori affirmations and admits only positive truth, i.e. factual knowledge gained through observation.
The → antiparticle of the → electron, which has the same → mass, → spin, and → electric charge as the electron, but the charge is → positive. Positrons may be generated by → radioactive decay or by → pair production from energetic → gamma ray photons.
A short-lived bound state of a positron and an electron.
From → positron + -ium (as in barium, titanium), from N.L., from L. neuter suffix.
Fr.: densité potentielle
Of a fluid parcel at pressure P, the density that it would acquire if adiabatically brought to a reference pressure.
power spectral density
cagâli-ye binâbi-ye tavân
Fr.: densité spectrale de puissance
Same as → spectral density.
A word used with a noun or pronoun to mark its relation with another word.
probability density function
karyâ-ye cagâli-ye šavânâyi
Fr.: fonction de densité de probabilité
A mathematical function whose integral over any interval gives the probability that a continuous → random variable has values in this interval. Also known as → density function, frequency function, → probability function.
farâhel, gozâré (#)
1) The act of offering or suggesting something to be considered,
accepted, adopted, or done.
Verbal noun of → propose.
Logic: Of, relating to, or in the form of a → proposition.
Fr.: constante propositionnelle
guyik-e gozâre-yi, ~ gozaarehâ
Fr.: logique propositionnelle
A branch of logic that deals with the → truth values of logical statements (→ sentences, → propositions) and uses → logical connectives to build more complex → expressions. The distinctive feature of propositional logic is that it does not deal with logical relationships and properties that involve the parts of a statement smaller than the simple statements making it up. The propositions are evaluated as → true or → false. A more expressive system is provided by the → first-order logic.
Fr.: symbole propositionnel
Fr.: variable propositionnel