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gf_global_function

Global function object is represented by three functions: * The function val. * The function gradient grad. * The function Hessian hess. this type of function is used as local and global enrichment function. The global function Hessian is an optional parameter (only for fourth order derivative problems).

Calling Sequence

GF = gf_global_function('cutoff', int fn, scalar r, scalar r1, scalar r0)
GF = gf_global_function('crack', int fn)
GF = gf_global_function('parser', string val[, string grad[, string hess]])
GF = gf_global_function('product', global_function F, global_function G)
GF = gf_global_function('add', global_function gf1, global_function gf2)

Description

General constructor for global_function objects.

Global function object is represented by three functions: * The function val. * The function gradient grad. * The function Hessian hess. this type of function is used as local and global enrichment function. The global function Hessian is an optional parameter (only for fourth order derivative problems).

Command list

See Also

Authors

Y. Collette


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