NAG Library Manual, Mark 27

Interfaces: FL CL CPP AD

NAG CPP Interface Introduction

Namespace: nagcpp

Namespace: opt

Class: CommE04WB

Method: setter_centraldiff-interval

NAG CPP Interface
opt::CommE04WB::setter_centraldiff-interval

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NAG Library Manual, Mark 27

Interfaces: FL CL CPP AD

NAG CPP Interface Introduction

Namespace: nagcpp

Namespace: opt

Class: CommE04WB

Method: setter_centraldiff-interval

▸▿ Contents

1 Description

2 Specification

3 Arguments

© The Numerical Algorithms Group Ltd. 2020

1 Description

If the algorithm switches to central differences because the forward-difference approximation is not sufficiently accurate, the value of

r

is used as the difference interval for every element of

x

Used by: centraldiff-interval in e04ucf and e04uff (no CPP interface).

CommE04WB::setter_centraldiff-interval returns a reference to the communication class itself.

2 Specification

CentralDifferenceInterval(double value = Default values are computed )

CentralDifferenceInterval(double value = Default values are computed , OptionalE04UE opt)

3 Arguments

1: $value$ – double Scalar: On entry: the required value of the argument.; Default:
Default values are computed
2: $opt$ – OptionalE04UE Scalar: Optional argument container, derived from Optional.

© The Numerical Algorithms Group Ltd. 2020