A series can be represented in a compact form, called summation or sigma notation. The
Greek capital letter, ∑ , is used to represent the sum
. The series 4+8+12+16+20+24 can be expressed as 6∑n=14n . The expression is read as the sum of 4n as n goes from 1 to 6 . The variable n is called the index of summation.
What is the concept of summation?
Summation, in physiology,
the additive effect of several electrical impulses on a neuromuscular junction
, the junction between a nerve cell and a muscle cell. Individually the stimuli cannot evoke a response, but collectively they can generate a response.
What is a summation in an essay?
Summation Sentences
wrap up your body paragraphs and restate the topic
. They help the reader transition from one paragraph to the next. They wrap up your thoughts and allow your writing flow better from one section to another. In this essay, you will have to create 3 summation sentences, one for each body paragraph.
What is the summation of a constant?
The sum of a constant is
equal to N times the constant
. then the summation sign may be taken inside the parentheses. then the addition and subtraction signs should be reversed. then the constant is multiplied times the sum of the variable.
How do you sum up an essay?
- Restate the thesis by making the same point with other words (paraphrase).
- Review your supporting ideas.
- For that, summarize all arguments by paraphrasing how you proved the thesis.
- Connect back to the essay hook and relate your closing statement to the opening one.
What is a sum up sentence?
If you sum up after a speech or at the end of a piece of writing,
you briefly state the main points again
. When a judge sums up after a trial, he or she reminds the jury of the evidence and the main arguments of the case they have heard. When the judge summed up, it was clear he wanted a guilty verdict.
What is summation and why is it important?
Summation of excitatory
postsynaptic potentials increases the probability that the potential will reach the threshold potential and generate an action potential
, whereas summation of inhibitory postsynaptic potentials can prevent the cell from achieving an action potential.
How does a summation work?
The summation sign, S,
instructs us to sum the elements of a sequence
. A typical element of the sequence which is being summed appears to the right of the summation sign. The variable of summation is represented by an index which is placed beneath the summation sign. The index is often represented by i.
What is summation and why does it occur?
At the molecular level, summation occurs because
the second stimulus triggers the release of more Ca
++
ions
, which become available to activate additional sarcomeres while the muscle is still contracting from the first stimulus. Summation results in greater contraction of the motor unit.
What is the sigma formula?
A series can be represented in a compact form, called summation or sigma notation. The Greek capital letter, ∑ , is used to represent the sum. The series 4+8+12+16+20+24 can be expressed as
6∑n=14n .
How do you start and end an essay?
- Use an Introduction that Exposes the Author. …
- Use an Introduction that Infuses Humor. …
- Use an Introduction that Asks a Question. …
- The Last. …
- End with a Startling Statement. …
- End with the Beginning. …
- End with a Summary.
What is a good closing sentence?
Lesson Summary
For each paragraph, the reader should be able to identify what your key points are, based on the concluding sentence. It should not include any information that was not discussed in the paragraph. Concluding sentences can start out with phrases such as ‘
In conclusion,' ‘Thus
,' and ‘For this reason.
What is a good closing sentence for an essay?
The conclusion basically asks us to do a few things: Restate the main idea of the paper (why you wrote this entire long piece to begin with).
Summarize all the key points you made throughout the body of the paper
(things that proved your thesis statement).
How do you sum up a sentence?
1 He wanted to sum up strength to deal a final blow. 2 Well, to sum up, what is the message that you are trying to get across? 3 You have only 100 words in which to sum up his speech. 4 I'd
just like to sum up by saying that it's been a tremendous pleasure to work with you.
