What does E mean in this format?

In summary: It is 10^x, in this case it means that the coefficients in x^3 and higher are zero.[/quote]In summary, the conversation was about creating a Polynomial trend line in Excel and rewriting the given equation in a format that works in the software. The "E" in the equation represents "x10#." The final formula in Excel would be = -9E-19*power(A1,6) + 2E-14*power(A1,5) - 2E-10*power(A1,4) + 1E-06*power(A1,3) - 0.0027*power(A1,2) + 3.5222*A1-
  • #1
Tmp
4
0
I'm just playing around with some stuff in excel.

I asked it to create a Polynomial trend line to the order 6 adn it came back wiht this...

Y = -9E-19x6 + 2E-14x5 - 2E-10x4 + 1E-06x3 - 0.0027x2 + 3.5222x - 1656.5


I just want to write that as a formula, but what's the E? I've seen it used to represent x10# before but that dosent seem to fit?

Can someone rewrite that in a format that works in excel?

eg.. = (10^-9)-(19*x^6)...
 
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  • #2
It is 10^x, in this case it means that the coeficients in x^3 and higher are zero.
 
  • #3
I kind of get what your saying but I still can't see how I can write that as a formula that will work in excel if someone can do it I'm sure I'll be able to make sense of it
 
  • #4
assuming that x is a cell A1 then you can use E directly in any number

= -9E-19*power(A1,6) + 2E-14*power(A1,5) - 2E-10*power(A1,4) + 1E-06*power(A1,3) - 0.0027*power(A1,2) + 3.5222*A1- 1656.5

Although because the higher terms are so small this is really just

= 0.0027*A1*A1 + 3.5222*A1- 1656.5
 
  • #5
Tmp said:
I'm just playing around with some stuff in excel.

I asked it to create a Polynomial trend line to the order 6 adn it came back wiht this...

Y = -9E-19x6 + 2E-14x5 - 2E-10x4 + 1E-06x3 - 0.0027x2 + 3.5222x - 1656.5

[itex]-9E-19[/itex] is "calculator speak" for [itex]-9 \times 10^{-19}= -0.0000000000000000009[/itex] (18 "0"s and "9" after the decimal point.)

Similarly
[tex]2E-14= 2\times 10^{-14}= .00000000000002[/tex]

[tex]-2 E-10= -2\times 10^{-10}= -.0000000002[/tex]

[tex]1E-06= 10^{-6}= 0.000001[/tex]

I just want to write that as a formula, but what's the E? I've seen it used to represent x10# before but that dosent seem to fit?

Can someone rewrite that in a format that works in excel?

eg.. = (10^-9)-(19*x^6)...
 

Related to What does E mean in this format?

What does E mean in this format?

In scientific notation, "E" stands for "exponent" and indicates the power of 10 to which the number before it is multiplied. For example, 5.2E6 means 5.2 x 10^6, which is equivalent to 5.2 million.

Is E always used in scientific notation?

Yes, E is always used in scientific notation to indicate the exponent. It is a standard notation used in scientific and mathematical calculations to represent very large or very small numbers.

Can E be a positive or negative number?

Yes, the number following E can be positive or negative. A positive exponent indicates a number greater than 1, while a negative exponent indicates a number less than 1. For example, 8.2E-3 is equivalent to 8.2 x 10^-3, which is 0.0082.

How do I convert a number in scientific notation to standard notation?

To convert a number from scientific notation to standard notation, simply move the decimal point to the left for a positive exponent or to the right for a negative exponent. The number of places you move the decimal point is equal to the absolute value of the exponent.

Why is scientific notation used?

Scientific notation is used because it allows us to express very large or very small numbers in a concise and standardized way. It also makes it easier to perform calculations and compare numbers of different magnitudes. Additionally, it is commonly used in science and engineering to represent measurements and calculations with significant figures.

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