文章指出，IBM Z 大型机平台的核心价值不在 COBOL，而在于其从芯片到操作系统的垂直整合架构，能够提供极高的事务处理能力、安全性与可用性。
Drumroll, please!。Line官方版本下载对此有专业解读
Commutativity and associativity might sound the same, and indeed most commutative operations are also associative. But there are a few math operations that are only one or the other. Matrix multiplication, for example, is associative but not commutative Matrix multiplication - Wikipedia en.wikipedia.org/wiki/Matrix_multiplication#Non-commutativity . And surprisingly, floating point arithmetic — i.e. any math operator in JavaScript — is commutative but not associative Associative property - Wikipedia en.wikipedia.org/wiki/Associative_property#Nonassociativity_of_floating_point_calculation ! ↩，详情可参考咪咕体育直播在线免费看
N-Convex Algorithm。体育直播对此有专业解读