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What is the error of a function?
In statistics, for non-negative values of x, the error function has the following interpretation: for a random variable Y that is normally distributed with mean 0 and standard deviation 1√2, erf x is the probability that Y falls in the range [−x, x].
What does ERFI mean in math?
imaginary error function
erfi( x ) returns the imaginary error function of x . If x is a vector or a matrix, erfi(x) returns the imaginary error function of each element of x .
What is combination error?
Rule: When two quantities are added or subtracted, the absolute error in the final result is the sum of the absolute errors in the individual quantities.
What does the error function equal?
The error function equals twice the integral of a normalized Gaussian function between 0 and x/σ √ 2. where G(x), as shown in the plot below, gives the probability that a variate with a Gaussian distribution takes on a value in the range [x, x + dx].
What is the error function in Excel?
You can use the IFERROR function to trap and handle errors in a formula. IFERROR returns a value you specify if a formula evaluates to an error; otherwise, it returns the result of the formula.
What does ERFI stand for?
ERFI
| Acronym | Definition |
|---|---|
| ERFI | Imaginary Error Function |
| ERFI | Electronic Request for Information |
| ERFI | Eastern Region Food Initiative (UK) |
What does ERFC stand for?
Erfc is the complementary error function, commonly denoted , is an entire function defined by. (1) (2) It is implemented in the Wolfram Language as Erfc[z].
What is the origin of the name ‘error function’?
The name “error function” and its abbreviation erf were proposed by J. W. L. Glaisher in 1871 on account of its connection with “the theory of Probability, and notably the theory of Errors .” The error function complement was also discussed by Glaisher in a separate publication in the same year.
What is an imaginary error function?
Imaginary Error Function for Floating-Point and Symbolic Numbers Depending on its arguments, erfi can return floating-point or exact symbolic results. Compute the imaginary error function for x and sin(x) + x*exp(x). If the input argument is a vector or a matrix, erfi returns the imaginary error function for each element of that vector or matrix.
What is error function in Excel?
Excel IFERROR Function is an error handling function, if an “Error” is found, then a desired value is returned. This is a new function introduced in Excel 2007 , which means Excel 2003 and prior versions cannot be used.
What is value error in Formula?
The #VALUE! Excel formula error is generated when one of the variables in a formula is of the wrong type. For example, the simple formula =B1+C1 relies on cells B1 and C1 containing numeric values. Therefore, if either B1 or C1 contains a text value, this results in the #VALUE! error.