gusucode.com > symbolic工具箱matlab源码程序 > symbolic/@sym/charToFunction.m
function f = charToFunction(c) %CHARTOFUNCTION(C) % Returns an array of MuPAD variables that correspond to the function c. % This is a hidden static method of the sym class. % % Examples: % charToFunction('int') returns the MuPAD identifiers [int, int_Var] % syms D(x), charToFunction('D') returns [D, D_Var] % Copyright 2016 The MathWorks, Inc. % Names that have to be translated in a special way specialnames = containers.Map(... {'angle', 'ei', 'expint', 'in', 'log', 'symsum', 'symprod'},... {'arg', 'Ei', 'Ei' , '_in', 'ln', 'sum', 'product'}); if iscell(c) f = cellfun(@sym.charToFunction, c, 'UniformOutput', false); % denest the cell array of sym vectors using cell2sym f = unique(cell2sym(f)); return; end if ~isvarname(c) error(message('symbolic:sym:errmsg1')) end % use the standard conversion convertName g = sym(c); % convert to function % re-name MATLAB names to MuPAD names if isKey(specialnames, c) c = specialnames(c); end % Do not rename the function name c to c_Var % Beware of MuPAD keywords h = evalin(symengine, ['`' c '`']); f = unique([g, h]);