Note that some authors e g whittaker and watson 1990 p.
Error function math.
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.
Error in applied mathematics the difference between a true value and an estimate or approximation of that value.
341 define without the leading factor of.
Erf is implemented in the wolfram language as erf z a two argument form giving is also implemented as erf z0 z1.
Function in mathematics an expression rule or law that defines a relationship between one variable the independent variable and another variable the dependent variable.
X erf x 1 erf x 0.
Input specified as a symbolic number variable expression or function or as a vector or matrix of symbolic numbers variables expressions or functions.
Functions are ubiquitous in mathematics and are essential for formulating physical relationships in the sciences.