Mathematical symbols 數學符號

∀ - for all

Reference

List of mathematical symbols (Wikipedia)

Tensor 張量

Array of numbers that may have
- scalar 純量
- vector 向量
- matrix 矩陣
- more dimensions.

Refernces

Lecture slides for Chapter 2 of Deep Learning, Ian Goodfellow
張量 (Tensor) - 金門大學陳鍾誠的網站

Data Center Locations - Google, Akamai, CloudFlare, Amazon CloudFront

Below data are recorded on August 19, 2017

Google - https://www.google.com/about/datacenters/inside/locations/index.html

• USA x 7
• Asia x 2 (Taiwan, Singapore)
• Europe x 4

      Taiwan 台灣 - Chunghua County 彰化縣

Akamai - https://www.akamai.com/us/en/locations.jsp

      Taiwan 台灣 - Taipei 台北市

CloudFlare - https://www.cloudflare.com/network/

• 116 data centers

      Taiwan 台灣 - Taipei 台北(亞洲第28個/全球第77個data center)

Amazon CloudFront Edge InfraStructure - https://aws.amazon.com/cloudfront/details/

• 22 edge locations / 11 regional edge caches

      Taiwan 台灣 - Taipei 台北