mul_lazy_variable.py 文件源码

def evaluate(self):
        res = None
        for lazy_var in self.lazy_vars:
            if res is None:
                res = lazy_var.evaluate()
            else:
                res = res * lazy_var.evaluate()

        if self.added_diag is not None:
            res = res + self.added_diag.diag()
        return res