@menu
* Introduction to Program Flow::  
* Definitions for Program Flow::  
@end menu

@node Introduction to Program Flow, Definitions for Program Flow, Program Flow, Program Flow
@section Introduction to Program Flow

@node Definitions for Program Flow,  , Introduction to Program Flow, Program Flow
@section Definitions for Program Flow

@deffn {Function} backtrace ()
@deffnx {Function} backtrace (@var{n})
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@end deffn

@deffn {Special operator} do
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@end deffn

@deffn {Function} errcatch (@var{expr_1}, ..., @var{expr_n})
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@end deffn

@deffn {Function} error (@var{expr_1}, ..., @var{expr_n})
@deffnx {System variable} error
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@end deffn

@deffn {Function} errormsg ()
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@end deffn

@deffn {Special operator} for
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@end deffn

@deffn {Function} go (@var{tag})
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@end deffn

@deffn {Special operator} if
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@end deffn

@deffn {Function} map (@var{f}, @var{expr_1}, ..., @var{expr_n})
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@end deffn

@deffn {Function} mapatom (@var{expr})
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@end deffn

@defvr {Option variable} maperror
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@end defvr

@deffn {Function} maplist (@var{f}, @var{expr_1}, ..., @var{expr_n})
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@end deffn

@defvr {Option variable} prederror
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@end defvr

@deffn {Function} return (value)
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@end deffn

@deffn {Function} scanmap (@var{f}, @var{expr})
@deffnx {Function} scanmap (@var{f}, @var{expr}, bottomup)
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@end deffn

@deffn {Function} throw (@var{expr})
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@end deffn

@deffn {Function} outermap (@var{f}, @var{a_1}, ..., @var{a_n})
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@end deffn

