pretty.py 文件源码

def _print_MatMul(self, expr):
        args = list(expr.args)
        from sympy import Add, MatAdd, HadamardProduct
        for i, a in enumerate(args):
            if (isinstance(a, (Add, MatAdd, HadamardProduct))
                    and len(expr.args) > 1):
                args[i] = prettyForm(*self._print(a).parens())
            else:
                args[i] = self._print(a)

        return prettyForm.__mul__(*args)