Difference between revisions of "Manuals/calci/HARMEAN"
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*Harmonic mean is used to calculate the average of a set of numbers. | *Harmonic mean is used to calculate the average of a set of numbers. | ||
*The Harmonic mean is always the lowest mean. | *The Harmonic mean is always the lowest mean. | ||
| − | *Normally <math>Harmonic mean < | + | *Normally <math>Harmonic mean < Geometric mean < Arithmetic mean</math> |
*Harmonic mean is defined as the reciprocal of the arithmetic mean by the reciprocals of a specified set of numbers. | *Harmonic mean is defined as the reciprocal of the arithmetic mean by the reciprocals of a specified set of numbers. | ||
*The harmonic mean of a positive real numbers <math>x1,x2,x3....xn > 0</math> is defined by : | *The harmonic mean of a positive real numbers <math>x1,x2,x3....xn > 0</math> is defined by : | ||
Revision as of 05:48, 10 December 2013
HARMEAN(n1,n2)
- and are the positive real numbers.
Description
- This function gives the Harmonic Mean of a given set of numbers.
- Harmonic mean is used to calculate the average of a set of numbers.
- The Harmonic mean is always the lowest mean.
- Normally Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle Harmonic mean < Geometric mean < Arithmetic mean}
- Harmonic mean is defined as the reciprocal of the arithmetic mean by the reciprocals of a specified set of numbers.
- The harmonic mean of a positive real numbers Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle x1,x2,x3....xn > 0} is defined by :
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle H=\frac {n}{(1/x1+1/x2+...+1/xn)} } ie
- Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle H=\frac{n}{\sum_{i=1}^{n} \frac{1}{xi}}} .
- In HARMEAN(n1,n2,...) Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle n1,n2..} are the positive real numbers, and here Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle n1} is required. Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle n2,n3...} , are optional.
- Also arguments can be numbers,names, arrays or references that contain numbers.
- We can give logical values and text representations of numbers directly.
- Suppose the arguments contains any text, logical values or empty cells like that values are ignored.
- This will give the result as error when
1.the arguments with the error values or the referred text couldn't translated in to numbers.
2.Also any data Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle point \le 0}
.
Examples
- HARMEAN(1,2,3,4,5)=2.18978102189781
- HARMEAN(20,25,32,41)=27.4649361523969
- HARMEAN(0.25,5.4,3.7,10.1,15.2)=1.0821913906985883
- HARMEAN(3,5,0,2)=NAN
- HARMEAN(1,-2,4)=NAN
See Also