Summation Symbol ∑ — Copy & Paste
The summation symbol ∑ (capital sigma) represents the operation of summing a series of values. It is a cornerstone of calculus, statistics, and machine learning notation. This character is the mathematical summation sign — distinct from the Greek letter Σ (sigma).
How to Type Summation Symbol
No standard shortcut — copy from this pageNo standard shortcut — copy from this pageNot on standard keyboard — copy from this page∑On Android, long-press common keys or use the special characters keyboard to find ∑. Or just copy it from this page — it works everywhere.
Unicode Details
U+221187212211∑Where Is Summation Symbol Used?
- ✦Calculus
- ✦Statistics
- ✦Machine learning
- ✦Series notation
Other Names for ∑
Frequently Asked Questions
How do I type the summation symbol on a Mac?▼
There is no built-in Mac keyboard shortcut for ∑. The easiest method is to copy it from this page with the button above.
Does ∑ work on Instagram, Discord, and TikTok?▼
Yes — ∑ is a standard Unicode character (U+2211) that renders on every platform and device. Copy it from this page and paste it into any text field on Instagram, Discord, TikTok, Twitter/X, WhatsApp, or elsewhere.
What is the HTML code for ∑?▼
The HTML entity for ∑ is ∑. You can also use the numeric reference ∑ or the hex reference ∑.