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summate
summate, v. (ˈsʌmeɪt) [f. med.L. summāt-, summāre to sum.] 1. trans. To add together or combine; spec. in Physiol., with reference to nerve impulses, etc. Also intr. and fig.1900 Nature LXII. 290/2 The excitatory electrical change in the whole organ..causes merely a change in one direction, which is...
Oxford English Dictionary
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Summation (neurophysiology)
If a target neuron receives input from a single axon terminal and that input occurs repeatedly at short intervals, the inputs can summate temporally. EPSP and depolarization
As long as the membrane potential is below threshold for firing impulses, the membrane potential can summate inputs.
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Summate using Abel method series $ \sum_{n=1}^{\infty} \sin{\theta n} $ Summate using Abel method series $ \sum_{n=1}^{\infty} \sin{\theta n} $. For Abel sum we should consider functional series $ \sum_{n=1}^{\infty}...
By Euler's formulas: $\sin n\theta = \dfrac{e^{in\theta}-e^{-in\theta}}{2i}$, so \begin{align} \sum_{n=1}^\infty \sin(n\theta)\,x^{n-1} &= \frac{x^{-1}}{2i} \sum_{n=1}^\infty \Big( (xe^{i\theta})^n- (xe^{-i\theta})^n \Big) \\\ &= \frac{1}{2i} \Big( \frac{e^{i\theta}}{1-xe^{i\theta}} - \frac{e^{-i\th...
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Retina horizontal cell
Horizontal cells span across photoreceptors and summate inputs before synapsing onto photoreceptor cells.
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summatory
† ˈsummatory, a. Obs. rare. [ad. mod.L. summātōrius, f. med.L. summāt-: see summate and -ory.] summatory arithmetic, summatory calculus: see quots.1704 C. Hayes Treat. Fluxions 60 The fundamental Rule in Summatory Arithmetick, to find the Flowing Quantity of a given Fluxion. 1710 J. Harris Lex. Tech...
Oxford English Dictionary
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summative
summative, a. (ˈsʌmətɪv) [f. med.L. summāt- (see summate) + -ive.] Operating by means of addition; additive; cumulative, pertaining to accumulation.1881 G. S. Hall German Culture 235 Relatively large and strongly-acting motor cells, whose connections with each other are mainly summative. 1891 G. S. ...
Oxford English Dictionary
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LTP induction
As the EPSPs summate, they will exceed the spike threshold.
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summator
summator (sʌˈmeɪtə(r)) [f. summate v. + -or.] 1. Electr. Engin. That which sums; spec. a device which sums the analogue or digital information it receives. Cf. integrator.1930 Engineering 11 Apr. 482/1 The summator proper consists of two parts, a series of small dials giving the total kilowatt hours...
Oxford English Dictionary
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Myogenic mechanism
Owing to temporal summation (depolarization potentials spaced closely together in time so that they summate), however, cell membrane depolarization will
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conclusively
conˈclusively, adv. [f. prec. + -ly2.] 1. † a. In conclusion, to conclude, finally, in short. Obs. b. In the end, at last, ultimately. Now rare or Obs.1552 Huloet, Conclusiuely, or in conclusion, summate, summatim, vix tandem. 1638 Heywood Rape Lucrece Wks. (1874) V. 179 Conclusively hee's from a to...
Oxford English Dictionary
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Stdarg.h
档案定义在单一UNIX规范的第二个版本中,简单的包含所有C89 stdarg.h的机能,除了:不能使用在标准C较新的形式定义;你可以不给予参数(标准C需要最少一个参数);与标准C运作的方法不同,其中一个写成:
#include <stdarg.h>
int summate(int n, ...) int n;
{
/* ... */
}
以此呼叫
summate(0);
summate(1, 2);
summate(4, 9, 2, 3, 2);
使用varargs.h的函式为:
#include <varargs.h>
summate(n, va_alist)
va_dcl
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inconsummate
† inconˈsummate, a. Obs. rare. [ad. late L. inconsummāt-us: see in-3 and consummate.] Not consummated or completed; unfinished.a 1641 Bp. R. Montagu Acts & Mon. (1642) 32 The other Iesus, son of Iosedec, left things as imperfect and inconsummate. 1678 Cudworth Intell. Syst. i. v. 648 Nor did the Nat...
Oxford English Dictionary
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unconsummate
unconˈsummate, ppl. a. [un-1 8 b and 5 b. Cf. next.] Not consummated; uncompleted.1609 Bible (Douay) Deut. xxiv. comm., Nothing..can loose the band of Mariage..unconsummate, but death, or solemne vow in an approved rule of religion. a 1643 W. Cartwright Siege iii. i, I cannot then retire me from the...
Oxford English Dictionary
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Sigma Series Sumate To Infinity How do I summate to infinity? I know I need to give the equation in terms of "n" and split it up into two different summations and subtract them but I don't know how you can physically ...
HINT: $$\frac2{r^2-1}=\frac{r+1-(r-1)}{(r+1)(r-1)}=\cdots$$ which forms a Telescoping Series
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How to make "sigma" summation of a function by i variable in GNU Octave? I need to make summation using function of a variable i like this: \begin{equation} \sum_{i=1}^5\left(|x_{i}| - |37-x_i|\right) \end{equation} ...
First, suppose a vector $x$ is given, e.g. by x = [2 3 5 7 11] Then the following computes the sum: sum(arrayfun(@(k) abs(x(k)) - abs(37 - x(k)), 1:5)) **Explanation** 1. `1:5` create a vector from $1$ to $5$ 2. `@(k) abs(x(k)) - abs(37 - x(k))` create an anonymous function with one free variable $k...
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