1a08386ee50a4798fb08eeaa02fb95f3b7ac6ea0,brian2/stateupdaters/exact.py,LinearStateUpdater,__call__,#LinearStateUpdater#Any#Any#,95

Before Change

                       if isinstance(symbol, Symbol)])

        for symbol in symbols:
            if symbol in specifiers and not getattr(specifiers[symbol],
                                                    "constant", False):
                raise ValueError(("The coefficient matrix for the equations "
                                 "contains "%s", which is not constant.") %
                                 symbol)
        
        symbols = [Symbol(variable, real=True) for variable in variables]
        solution = sp.solve_linear_system(matrix.row_join(constants), *symbols)
        b = sp.Matrix([solution[symbol] for symbol in symbols]).transpose()
        

After Change

        // Make sure that the matrix M is constant, i.e. it only contains
        // external variables or constant specifiers
        non_constant = _non_constant_symbols(matrix, specifiers)
        if len(non_constant):
            raise ValueError(("The coefficient matrix for the equations "
                              "contains the symbols %s, which are not "
                              "constant.") % str(non_constant))
        
        symbols = [Symbol(variable, real=True) for variable in variables]
        solution = sp.solve_linear_system(matrix.row_join(constants), *symbols)
        b = sp.Matrix([solution[symbol] for symbol in symbols]).transpose()
        

Instances