enum GSL::MultiRoot::AlgorithmFDF

Defined in:

gsl/maths/optimization/multiroot.cr

Enum Members

HybridScaled = 0

This is a modified version of Powell’s Hybrid method as implemented in the HYBRJ algorithm in MINPACK.

Hybrid = 1

This algorithm is an unscaled version of HYBRIDSJ. This can be useful if the generalized region estimated by HYBRIDSJ is inappropriate.

Newton = 2

Newton’s Method is the standard root-polishing algorithm.

GNewton = 3

This is a modified version of Newton’s method which attempts to improve global convergence by requiring every step to reduce the Euclidean norm of the residual

Instance Method Summary

Instance Method Detail

def g_newton? #

Returns true if this enum value equals GNewton


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def hybrid? #

Returns true if this enum value equals Hybrid


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def hybrid_scaled? #

Returns true if this enum value equals HybridScaled


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def newton? #

Returns true if this enum value equals Newton


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def to_s #
Description copied from struct Enum

Returns a String representation of this enum member. In the case of regular enums, this is just the name of the member. In the case of flag enums, it's the names joined by vertical bars, or "None", if the value is zero.

If an enum's value doesn't match a member's value, the raw value is returned as a string.

Color::Red.to_s                     # => "Red"
IOMode::None.to_s                   # => "None"
(IOMode::Read | IOMode::Write).to_s # => "Read | Write"

Color.new(10).to_s # => "10"

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def to_unsafe #

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