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MapleTA[Builtin]

  

erf

  

cumulative probability of a standard normal distribution

 

Calling Sequence

Parameters

Description

Examples

Compatibility

Calling Sequence

erf(z)

Parameters

z

-

numeric

Description

• 

The erf command computes the cumulative probability (probability that a variate assumes a value less than or equal to z) for a standard normal distribution (that is, with mean 0 and variance 1).

• 

Other normal distributions can be modeled by re-normalizing (that is, erf((z-m)/s) is the probability distribution of a normal distribution with mean m and standard deviation s).

• 

Note that this is not the same as Maple's top-level erf command.  It is synonymous with Statistics:-CDF( Normal(0,1), z, 'numeric').

Examples

MapleTA:-Builtin:-erf0

0.500000000000000

(1)

MapleTA:-Builtin:-erf0.62

0.732371106531017

(2)

Compatibility

• 

The MapleTA[Builtin][erf] command was introduced in Maple 18.

• 

For more information on Maple 18 changes, see Updates in Maple 18.

See Also

MapleTA

Statistics:-CDF

 


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