Represents summation
For example, the sequence Sn=∑(an)=a 1+a2+a3+…+an.
wisdom
Question 2: How to pronounce the symbol of the summation formula? The symbol of the summation formula is pronounced sigma.
Question 3: How to pronounce the summation formula? That symbol is pronounced sigma.
Question 4: How to read the summation formula? How to read Chinese: the given formula ranges from k= 1 to the sum of k = n.
English reading: sigma k= 1 to k = n+ formula.
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Question: How to pronounce the ∑ symbol of the sum letter?
This should be pronounced Sigma.
The mathematical symbol σ is his lowercase! !
Question 6: How to pronounce ∑ in the summation formula ∑?
Chinese name: Sigma (capital σ, lowercase σ)
English name: Shima
abstract
Capital σ is used for mathematical summation symbols, such as ∑Pi, where i= 1, 2, ..., t, which is the sum of P 1+P2+ and ...+angle. Lowercase σ is used for statistical standard deviation. Both the с of Cyrillic alphabet and the S of Latin alphabet are derived from Sigma.
It also means summation, which means ∑ j =1+2+3+…+n.
So go to Sima.
Question 7: How to use hypothetical table layout in excel summation formula;
Columns a, b, c and d
Name Unit Price Quantity Amount
……
total
Formula editing:
Product of column b and column c data
Enter the formula in cell D2.
=B2*C2
or
= Product (B2:C2)
Enter to confirm and copy the formula into the corresponding cell.
A product is a function of multiplying several numbers.
You can use cell or cell range references in product brackets, or you can use numbers separated by commas (no more than 30).
Enter the formula in the cell where the total row crosses the amount column (assuming D 100).
= sum (D2:D 100)
Just enter the car and confirm.
The function SUM is a summation function, which requires the sum of all data products in column B and column C (sum of all data in cell area D2 in the amount column: D 100).