| slovo | definícia |
equations
(encz) | equations,rovnice pl. Zdeněk Brož |
| | podobné slovo | definícia |
simultaneous equations
(encz) | simultaneous equations,soustava rovnic Vít Profant |
Determinate equations
(gcide) | Determinate \De*ter"mi*nate\, a. [L. determinatus, p. p. of
determinare. See Determine.]
1. Having defined limits; not uncertain or arbitrary; fixed;
established; definite.
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Quantity of words and a determinate number of feet.
--Dryden.
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2. Conclusive; decisive; positive.
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The determinate counsel and foreknowledge of God.
--Acts ii. 23.
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3. Determined or resolved upon. [Obs.]
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My determinate voyage. --Shak.
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4. Of determined purpose; resolute. [Obs.]
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More determinate to do than skillful how to do.
--Sir P.
Sidney.
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Determinate inflorescence (Bot.), that in which the
flowering commences with the terminal bud of a stem, which
puts a limit to its growth; -- also called {centrifugal
inflorescence}.
Determinate problem (Math.), a problem which admits of a
limited number of solutions.
Determinate quantities, Determinate equations (Math.),
those that are finite in the number of values or
solutions, that is, in which the conditions of the problem
or equation determine the number.
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Equations of condition
(gcide) | Equation \E*qua"tion\, n. [L. aequatio an equalizing: cf. F.
['e]quation equation. See Equate.]
1. A making equal; equal division; equality; equilibrium.
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Again the golden day resumed its right,
And ruled in just equation with the night. --Rowe.
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2. (Math.) An expression of the condition of equality between
two algebraic quantities or sets of quantities, the sign =
being placed between them; as, a binomial equation; a
quadratic equation; an algebraic equation; a
transcendental equation; an exponential equation; a
logarithmic equation; a differential equation, etc.
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3. (Astron.) A quantity to be applied in computing the mean
place or other element of a celestial body; that is, any
one of the several quantities to be added to, or taken
from, its position as calculated on the hypothesis of a
mean uniform motion, in order to find its true position as
resulting from its actual and unequal motion.
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Absolute equation. See under Absolute.
Equation box, or Equational box, a system of differential
gearing used in spinning machines for regulating the twist
of the yarn. It resembles gearing used in equation clocks
for showing apparent time.
Equation of the center (Astron.), the difference between
the place of a planet as supposed to move uniformly in a
circle, and its place as moving in an ellipse.
Equations of condition (Math.), equations formed for
deducing the true values of certain quantities from others
on which they depend, when different sets of the latter,
as given by observation, would yield different values of
the quantities sought, and the number of equations that
may be found is greater than the number of unknown
quantities.
Equation of a curve (Math.), an equation which expresses
the relation between the co["o]rdinates of every point in
the curve.
Equation of equinoxes (Astron.), the difference between the
mean and apparent places of the equinox.
Equation of payments (Arith.), the process of finding the
mean time of payment of several sums due at different
times.
Equation of time (Astron.), the difference between mean and
apparent time, or between the time of day indicated by the
sun, and that by a perfect clock going uniformly all the
year round.
Equation clock or Equation watch, a timepiece made to
exhibit the differences between mean solar and apparent
solar time. --Knight.
Normal equation. See under Normal.
Personal equation (Astron.), the difference between an
observed result and the true qualities or peculiarities in
the observer; particularly the difference, in an average
of a large number of observation, between the instant when
an observer notes a phenomenon, as the transit of a star,
and the assumed instant of its actual occurrence; or,
relatively, the difference between these instants as noted
by two observers. It is usually only a fraction of a
second; -- sometimes applied loosely to differences of
judgment or method occasioned by temperamental qualities
of individuals.
Theory of equations (Math.), the branch of algebra that
treats of the properties of a single algebraic equation of
any degree containing one unknown quantity.
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Normal equations
(gcide) | Normal \Nor"mal\ (n[^o]r"mal), a. [L. normalis, fr. norma rule,
pattern, carpenter's square; prob. akin to noscere to know;
cf. Gr. gnw`rimos well known, gnw`mwn gnomon, also,
carpenter's square: cf. F. normal. See Known, and cf.
Abnormal, Enormous.]
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1. According to an established norm, rule, or principle;
conformed to a type, standard, or regular form; performing
the proper functions; not abnormal; regular; natural;
analogical.
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Deviations from the normal type. --Hallam.
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2. (Geom.) According to a square or rule; perpendicular;
forming a right angle; as, a line normal to the base.
Specifically: Of or pertaining to a normal.
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3. (Chem.) Standard; original; exact; typical. Specifically:
(a) (Quantitative Analysis) Denoting a solution of such
strength that every cubic centimeter contains the same
number of milligrams of the element in question as the
number of its molecular weight.
(b) (Chem.) Denoting certain hypothetical compounds, as
acids from which the real acids are obtained by
dehydration; thus, normal sulphuric acid and normal
nitric acid are respectively S(OH)6, and N(OH)5.
(c) (Organ. Chem.) Denoting that series of hydrocarbons in
which no carbon atom is bound to more than two other
carbon atoms; as, normal pentane, hexane, etc. Cf.
Iso-.
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Normal equations (Method of Least Squares), a set of
equations of the first degree equal in number to the
number of unknown quantities, and derived from the
observations by a specified process. The solution of the
normal equations gives the most probable values of the
unknown quantities.
Normal group (Geol.), a group of rocks taken as a standard.
--Lyell.
Normal place (of a planet or comet) (Astron.), the apparent
place in the heavens of a planet or comet at a specified
time, the place having been determined by a considerable
number of observations, extending perhaps over many days,
and so combined that the accidental errors of observation
have largely balanced each other.
Normal school, a school whose methods of instruction are to
serve as a model for imitation; an institution for the
training of teachers.
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Syn: Normal, Regular, Ordinary.
Usage: Regular and ordinary are popular terms of well-known
signification; normal has now a more specific sense,
arising out of its use in science. A thing is normal,
or in its normal state, when strictly conformed to
those principles of its constitution which mark its
species or to the standard of a healthy and natural
condition. It is abnormal when it departs from those
principles.
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Simultaneous equations
(gcide) | Simultaneous \Si`mul*ta"ne*ous\, a. [LL. simultim at the same
time, fr. L. simul. See Simulate.]
Existing, happening, or done, at the same time; as,
simultaneous events. -- Si`mul*ta"ne*ous*ly, adv. --
Si`mul*ta"ne*ous*ness, n.
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Simultaneous equations (Alg.), two or more equations in
which the values of the unknown quantities entering them
are the same at the same time in both or in all.
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Theory of equations
(gcide) | Equation \E*qua"tion\, n. [L. aequatio an equalizing: cf. F.
['e]quation equation. See Equate.]
1. A making equal; equal division; equality; equilibrium.
[1913 Webster]
Again the golden day resumed its right,
And ruled in just equation with the night. --Rowe.
[1913 Webster]
2. (Math.) An expression of the condition of equality between
two algebraic quantities or sets of quantities, the sign =
being placed between them; as, a binomial equation; a
quadratic equation; an algebraic equation; a
transcendental equation; an exponential equation; a
logarithmic equation; a differential equation, etc.
[1913 Webster]
3. (Astron.) A quantity to be applied in computing the mean
place or other element of a celestial body; that is, any
one of the several quantities to be added to, or taken
from, its position as calculated on the hypothesis of a
mean uniform motion, in order to find its true position as
resulting from its actual and unequal motion.
[1913 Webster]
Absolute equation. See under Absolute.
Equation box, or Equational box, a system of differential
gearing used in spinning machines for regulating the twist
of the yarn. It resembles gearing used in equation clocks
for showing apparent time.
Equation of the center (Astron.), the difference between
the place of a planet as supposed to move uniformly in a
circle, and its place as moving in an ellipse.
Equations of condition (Math.), equations formed for
deducing the true values of certain quantities from others
on which they depend, when different sets of the latter,
as given by observation, would yield different values of
the quantities sought, and the number of equations that
may be found is greater than the number of unknown
quantities.
Equation of a curve (Math.), an equation which expresses
the relation between the co["o]rdinates of every point in
the curve.
Equation of equinoxes (Astron.), the difference between the
mean and apparent places of the equinox.
Equation of payments (Arith.), the process of finding the
mean time of payment of several sums due at different
times.
Equation of time (Astron.), the difference between mean and
apparent time, or between the time of day indicated by the
sun, and that by a perfect clock going uniformly all the
year round.
Equation clock or Equation watch, a timepiece made to
exhibit the differences between mean solar and apparent
solar time. --Knight.
Normal equation. See under Normal.
Personal equation (Astron.), the difference between an
observed result and the true qualities or peculiarities in
the observer; particularly the difference, in an average
of a large number of observation, between the instant when
an observer notes a phenomenon, as the transit of a star,
and the assumed instant of its actual occurrence; or,
relatively, the difference between these instants as noted
by two observers. It is usually only a fraction of a
second; -- sometimes applied loosely to differences of
judgment or method occasioned by temperamental qualities
of individuals.
Theory of equations (Math.), the branch of algebra that
treats of the properties of a single algebraic equation of
any degree containing one unknown quantity.
[1913 Webster] |
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