Erf satisfies the identities.
Error function math.
Functions are ubiquitous in mathematics and are essential for formulating physical relationships in the sciences.
Function in mathematics an expression rule or law that defines a relationship between one variable the independent variable and another variable the dependent variable.
In statistics a common example is the difference between the mean of an entire population and the mean of a sample drawn from that population.
341 define without the leading factor of.
X erf x 1 erf x 0.
Error in applied mathematics the difference between a true value and an estimate or approximation of that value.
Note that some authors e g whittaker and watson 1990 p.
Input specified as a symbolic number variable expression or function or as a vector or matrix of symbolic numbers variables expressions or functions.